Western Laser Eye Associates | Dr. Anderson Penno

World Glaucoma Week: Whether You Have LASIK, Epi-LASIK, Intra-LASIK, PRK Or No Surgery - Get Screened At Age 40

noreply@blogger.com (Western Laser Eye Staff) — Wed, 10 Mar 2010 04:35:00 +0000

SAN FRANCISCO—Glaucoma continues to be a major cause of blindness and vision loss both worldwide and in the United States, where an estimated 2.2 million people have the disease. During World Glaucoma Week 2010, the American Academy of Ophthalmology’s EyeSmart™ campaign and EyeCare America Foundation remind Americans that knowing your risks for glaucoma can save your sight. People with the top risk factors for the disease need to be especially vigilant. A recent National Eye Institute (NEI) report found that fewer than 10 percent of Americans surveyed knew that glaucoma has no early warning signs, in most cases.

“Glaucoma’s silent onset is a key reason the disease so often damages people’s vision before they know they have it, and why eye exams are vital,” says Andrew Iwach, MD, spokesperson for the American Academy of Ophthalmology (Academy) and glaucoma expert. “Ophthalmologists–Eye M.D.s–can detect the subtle, early signs of glaucoma and provide treatment that will help people keep their best possible vision.”

Top risk factors for glaucoma are:

Age (65 years and older)
Elevated eye pressure
Family history of glaucoma
African, Asian or Latino ethnicity
Related health problems, including diabetes, low blood pressure, migraine headaches

For people of any age with symptoms or risks for eye disease, such as glaucoma, the Academy recommends seeing an Eye M.D. to decide on eye exam intervals and other needed care. For adults with no signs or risk factors for eye disease, the Academy recommends a baseline screening at age 40—the time when the early stages of age-related eye disorders and vision changes may begin. Based on this screening information, the Eye M.D. will prescribe how often to return for follow-up exams.

NEI and other research show that timely treatment helps save people’s vision. Such studies also give ophthalmologists new data on improving patient care. For example, the Ocular Hypertension Treatment Study found that eye pressure-reducing medications lowered the risk of glaucoma by more than 50 percent in high-risk patients.

About Glaucoma
Glaucoma damages the optic nerve that transmits images from the eye to the brain. As glaucoma worsens, cells also die in the retina–a special, light-sensitive area of the eye–which further reduces the optic nerve’s function. The most common form of the disease is primary open-angle glaucoma (POAG). Fluid builds up in the front chamber of the eye, and the optic nerve is damaged by the resulting increase in eye pressure.

If a person has POAG, the lack of obvious symptoms makes it nearly impossible for him to know he has the disease. Since POAG-related vision changes are so gradual and easily overlooked, regular eye exams are important. Symptoms of the less common but more immediately dangerous closed-angle glaucoma include: blurred vision, severe eye pain and headache, rainbow-colored halos around lights, and nausea and vomiting. Anyone with these symptoms needs to be seen by an Eye M.D. right away

Reprinted with permission from AAO's www.geteyesmart.org.

More information about LASIK, Epi-LASIK, Intra-LASIK and PRK can be found in Dr. Anderson Penno's latest book "Laser Vision Correction: What You Need To Know" available at www.amazon.com.

To book your complimentary refactive surgery assessment contact www.westernlasereye.com or call 403-547-9775.

Nearsightedness On The Rise

noreply@blogger.com (Western Laser Eye Staff) — Tue, 02 Mar 2010 05:32:00 +0000

A new study released from the National Eye Institute (NEI) shows that rates of myopia (nearsightedness) are on the rise amongst Americans. According to the researchers, the rates of myopia in people age 12 to 54 increased from 25 percent in 1971-72 to 41.6 percent in 1999-2004. The survey included people with mild to severe myopia.

The 66.4 percent increase in myopia in Americans since the 1970s, is significant and will impact healthcare costs as well as vision quality. Today, 47 million Americans aged 20 and older are myopic and billions of dollars are spent annually on glasses and contact lenses. In addition, the majority of LASIK and related refractive surgical procedures in the United States are performed to correct myopia. For more information about myopia visit: http://www.geteyesmart.org/eyesmart/correction/LASIK.cfm

This article reprinted with permission from the American Academy of Ophthalmology's EyeSmart™ campaign (www.geteyesmart.org).

More information is available at http://www.westernlasereye.com/ and in Dr. Anderson Penno's latest book "Laser Vision Correction: What You Need To Know" available at http://www.amazon.com/. To book your complimentary assessment call 403.547.9775.

Calgary Epi-LASIK, LASIK, PRK, Intra-LASIK: What is Custom Wavefront Laser Vision Correction?

noreply@blogger.com (Western Laser Eye Staff) — Sat, 27 Feb 2010 04:50:00 +0000

Once you decide you are interested in having laser vision correction surgery there are several things to consider. Which procedure is best for you? Which surgeon to choose? How much will it cost? What type of laser will be used?

Laser vision correction can be done by making a corneal flap and placing the laser treatment under the flap; the flap can be made by a mechanical microkeratome for LASIK or with the femtosecond laser with Intra-LASIK. Many surgeons are favoring surface no-flap treatments due to the lower risk and equally good long term results; no flap treatments include PRK and Epi-LASIK.

For either no-flap or flap treatments the application of the laser can be a standard treatment or a customized wavefront treatment. The standard treatment will treat simple sphere (nearsighted or farsighted) corrections as well as astigmatism corrections. For a true custom wavefront treatment measurements are made using a wavefront analyzer before surgery. The wavefront analyzer uses infrared light which is projected into the eye; the light is measured as it exits the eye and analyzed to provide an aberrometry map. The aberrometry map contains information about the simple sphere and astigmatism corrections along with more complex higher order aberrations. Each individual will have a unique set of higher order aberrations. The Wavescan aberrometer uses approximately 240 data points to create a unique aberrometry map that can be used for a truly customized wavefront treatment by the Visx S4 IR excimer laser.

The Visx laser is the most widely used excimer laser in North America. For customized wavefront treatments the wavescan aberrometry map data is loaded into the Visx S4 IR excimer laser for each unique eye to be treated. The wavescan aberrometry map also contains information regarding iris landmarks (the iris is the colored part of the eye surrounding the pupil). This iris information is used during treatment to recognize the unique eye to be treated and to adjust the treatment for cyclorotation and iris centration. Cyclorotation is the rotation of the eye which can occur between sitting upright and laying down. For some people this rotation may be greater than 10 degrees. The pupil may also shift slightly in response to lighting conditions. The iris recognition feature available on the Visx S4 IR excimer laser system allows for the precise application of the laser treatment for optimal results.

While many people have had satisfactory results with standard laser treatments, there is evidence to show that true custom wavefront treatments offer better results. An analogy that is often used is that of an off the rack suit compared to a tailor-made suit. Custom wavefront laser vision correction is tailored to your individual eye.

Choosing to have laser vision correction is a big decision. Considering all the factors involved including laser type and standard versus wavefront corrections will help you make the choice that is best for you.

More information is available in Dr. Anderson Penno's latest book "Laser Vision Correction: What You Need to Know" which is available at http://www.amazon.com/Laser-Vision-Correction-What-Need/dp/143926497X/ref=sr_1_1?ie=UTF8&s=books&qid=1267248232&sr=1-1#noop.

To book a complimentary assessment with Dr. Anderson Penno contact us at 403-547-9775 or www.westernlasereye.com.

Epi-LASIK, PRK, LASIK & Epi-LASIK: Laser Vision Correction When You're Over Forty

noreply@blogger.com (Western Laser Eye Staff) — Sat, 20 Feb 2010 03:26:00 +0000

For those over the age of forty who are considering laser vision correction, it is important to understand the effects of age on the ability to focus up close. This age related loss of focus ability is called presbyopia. For people with good uncorrected distance vision and for those who have a full contact lens correction for distance, presbyopia means that at some point after the age of forty you will begin to need reading glasses (or reading glasses over your contacts) in order to read up close. As this age related process continues you will begin to need glasses for computer work and other intermediate work. People who wear glasses full time will need a progressive lens or a bifocal in order to read with their glasses on. Before progressive (lineless bifocal) lenses were available you would likely get a bifocal sometime in your forties, and then a trifocal to include the mid-range correction in your fifties. People with mild nearsightedness may simply take their glasses off to read rather than getting a progressive or bifocal eyeglass.

Those who wear contacts for distance with reading glasses over their contacts will eliminate the need for their distance contact lenses but will still need reading glasses after laser eye surgery if both eyes are corrected fully for distance. For people who wear bifocal or progressive lenses, laser vision correction will eliminate just the top distance correction if a distance target is chosen. Reading glasses will still be needed following surgery, and if you are in your fifties then a mid-range correction might be required as well. For the mildly nearsighted people who are over the age of forty, they may be trading their distance glasses for readers with a full laser vision correction. For this group, anything the ordinarily do with glasses off will require readers. An example is someone who does desk work all day with their glasses off and then puts their glasses on to drive home; this person will wear readers and possibly computer glasses all day at work and then take them off to drive home. It is important to understand the effects of presbyopia in order to make sure you will be satisfied with the outcome of surgery.

The only alternative to readers for those who undergo laser vision correction and are over the age of forty is to consider monovision. Monovision is when one eye is corrected fully for distance and the other is left mildly nearsighted for close work. This arrangement may work well for some people, but it is important to simulate monovision with contact lenses or with a trial-frame in your eye doctor's office before considering it for a permanent laser vision correction. For a mildly nearsighted person, monovision may mean that a correction is done only in one eye and the other is left untouched. If possible the trial should include both ways - right eye for distance and left for close and then left eye for distance and right for close. Your optometrist can assist you in doing a monovision trial with contact lenses.

If you can adjust to monovision and are over forty, this option will give you the widest range of functional vision without having to put readers on and off. Monovision may not completely eliminate the need for glasses. Some people with monovision might prefer to wear glasses for night driving or to wear readers for detailed close tasks like sewing. Monovision is a compromise. Your best vision will be obtained with both eyes corrected, which is why some people with monovision will wear glasses for specific tasks. People who spend a large amount of time doing hobbies like tennis or golf or who depend on distance vision for their jobs like professional drivers may not be good candidates for monovision. In general, monovision is not recommended for younger people since the benefit of monovision will not be present until sometime after the age of forty.

Whether to do a full correction for distance or to do monovision with any of the laser vision correction techniques is a personal choice. It is important if you are over the age of forty to understand the choice you are making so you are not disappointed by having to wear reading glasses or computer glasses after surgery.

More information on monovision and other laser vision correction options is available in Dr. Anderson Penno's book "Laser Vision Correction: What You Need To Know". It is available at www.Amazon.com - the specific link to the book page is:
http://www.amazon.com/Laser-Vision-Correction-What-Need/dp/143926497X/ref=sr_1_1?ie=UTF8&s=books&qid=1266637919&sr=1-1

To book your complimentary laser vision assessment call 403-247-9775 or visit www.westernlasereye.com.

New Book About LASIK, PRK, Epi-LASIK, and Intra-LASIK

noreply@blogger.com (Western Laser Eye Staff) — Sat, 06 Feb 2010 18:20:00 +0000

Dr. Anderson Penno is pleased to announce that her latest book "Laser Vision Correction: What You Need to Know" is now available on Amazon.com. This book is an excellent resource for anyone considering vision correction surgery. Follow the link below to access the Amazon page:

http://www.amazon.com/Laser-Vision-Correction-What-Need/dp/143926497X/ref=sr_1_1?ie=UTF8&qid=1265126338&sr=8-1

"Laser Vision Correction: What You Need to Know" is also available at www.booksurge.com and is coming soon to Kindle.

Call 403.547.9774 or visit www.westernlasereye.com to book your complimentary assessment.

Recovery after No-Flap Laser Vision Correction: PRK and Epi-LASIK

noreply@blogger.com (Gary Penno) — Mon, 04 Jan 2010 02:50:00 +0000

Laser vision correction surgeries can be divided into flap and no-flap categories. Flap treatments include LASIK and Intra-LASIK. These treatments involve creating a corneal flap, lifting the flap, and then applying the excimer laser energy to reshape the tissue under the flap. The corneal flap is then replaced. Creating a corneal flap carries some risk of flap problems at the time of surgery or possible flap shift after surgery. The flap allows for more rapid recovery of vision and less discomfort in the first few days.

The long term results are equally good according to many studies that compare flap to no-flap treatments. No-flap laser vision correction treatments, PRK and Epi-LASIK, have gained in popularity over the past few years due to the longstanding safety record of surface no-flap treatments. PRK was introduced over twenty years ago in North America. For PRK the surface cells called epithelium cells are removed with a brush or spatula. Epi-LASIK is a newer treatment that uses an epikeratome to remove the surface cells to prepare the surface for laser reshaping.

No-flap laser vision correction carries a lower risk than flap treatments and will take longer to recover from than flap treatments. No-flap treatments like PRK and Epi-LASIK require an investment of time for healing in return for an added level of safety with excellent long term results. The recovery from no-flap treatments can be divided into days 1-4, 3 days to 1 week, 1 week to 8 weeks,2 months to 1 year.

Days 1-4 following PRK and Epi-LASIK are when the surface epithelial cells regenerate. During this time a bandage contact will remain in place to help with comfort. The amount of discomfort in the first few days will range from mildly gritty or sore to more significant burning, stinging, and light sensitivity. During these first few days following a no-flap laser vision correction treatment it is important to use medicated drops as directed, to use copious lubricating drops, and to plan to rest as much as possible with the eyes closed. Most people will find the comfort and vision worsens over the first few days following surgery. Many people find that the worst of the discomfort occurs in the second 24 hours after treatment and then improves. Pain medications including special eye drops are provided for use if needed. While not everyone will need these pain relievers, a minority of people will be staying in a dark room with their eyes closed for a day or two.

Days 3 to 7 will be a period of vision improvement. In most cases the epithelium will be healed and the bandage contact lens will be removed on day 3 or 4. Following Epi-LASIK many people may be legal to drive within 5 days. With PRK the healing may result in vision in the legal to drive range at about 7 to 10 days. It is important to know that legal to drive is a few lines away from 20/20, so some people will chose to wait longer before driving. While many people will return to usual activities in this time, some modifications may be necessary such as more breaks from computer work or avoiding night driving. During this time fluctuations of vision may be present and the vision will continue to improve. Post-operative examinations are usually done every 1 to 2 days until the bandage contact lenses are removed.

Weeks 1 to 8 are a time of continued sharpening up of vision. During this time symptoms of dryness, night vision problems, and overall vision will improve. Some people will continue to need frequent lubrication drops. Most surgeons will recommend continuation of steroid eye drops to aid in healing. While many people will be very happy with their vision within several days after surgery, others will be happier after 1 to 2 months following surgery. Patience with healing is important following PRK and Epi-LASIK.

Post-operative vision checks are usually scheduled every 1 to 2 months for 3 to 6 months. In most cases it is advisable to wait up to 6 months before considering an enhancement surgery (touch up). The majority of people will have a stable correction following PRK or Epi-LASIK for many years following laser vision correction.

When considering a no-flap laser vision correction treatment it is important to understand the benefits of safety and excellent long term results in return for a longer recovery than with flap procedures. The majority of people have excellent results with PRK and Epi-LASIK. For more information or to schedule your free laser vision consultation contact www.westernlasereye.com or call 403.547.9775.

LASIK, Epi-LASIK, PRK, Intralase and Diabetes

noreply@blogger.com (Western Laser Eye Staff) — Thu, 19 Nov 2009 04:40:00 +0000

Diabetes does not automatically disqualify you from laser vision correction surgery. If the blood sugar is under good control and the prescription is stable you may qualify. If the blood sugar is fluctuating to very high or very low levels then the prescription may be unstable. In some cases a diagnosis of diabetes is made when fluctuating vision leads to a check of blood sugar.

Diabetic people are also at risk for diabetic retinal problems. Whether or not laser vision correction is being considered, people with diabetes should have annual eye examinations regardless of age. The American Academy of Ophthalmology's patient education site Get Eye Smart has a campaign to get 10,000 diabetic people committed to annual eye examinations.

Over half of diabetic people do not get annual eye examinations and are at risk for vision loss. Over 90 percent of severe vision loss due to diabetes can be prevented by routine examination. For every pledge to have annual eye examinations the Academy of Ophthalmology will donate one dollar to diabetic eye health education. More information is available at http://www.geteyesmart.org/eyesmart/eyecommitted/about.cfm.

For more information about laser vision correction in Calgary contact us at www.westernlasereye.com or call 403-547-9775.

H1N1 (Swine Flu) in Calgary

noreply@blogger.com (Western Laser Eye Staff) — Mon, 09 Nov 2009 05:41:00 +0000

The H1N1 (Swine Flu) virus appears to be very active in Calgary at this time. While the H1N1 flu will not impact your suitability for laser vision correction, it is important to be aware of how the flu might impact you.

The Alberta Health Care (AHC) service has identified high risk groups for priority vaccination. Check http://www.albertahealthservices.ca/887.asp to find updated information. These groups include children from 6 months up to 5 years old, children up to age 10 with chronic disease, pregnant women, care-givers of infants less than 6 months, and health care workers. Most health care workers have received the H1N1 vaccination. Health care workers are also instructed not to come to work if they have a fever. This will help to protect you when you come into a medical office for evaluations including if you choose to undergo a laser vision correction assessment or surgery.

The majority of people will recover from H1N1, however young children, pregnant women, and people with underlying problems like asthma or other health conditions are at risk for more serious disease. The CDC reports that over 70% of of the deaths from H1N1 have occurred in people that have underlying medical conditions.

If you are in a high risk group and qualify for the vaccination, it is recommended. Although the vaccine is new, so far there have been no significant numbers of adverse reactions to the vaccine. If you have symptoms of flu which include sudden onset of upper respiratory symptoms, fever, sore throat, and in some cases gastrointestinal distress and are in a high risk group then taking Tamiflu at the onset of symptoms may shorten the duration and severity of the flu. If you have a fever then you should avoid going to work and reschedule elective medical appointments to reduce the chance of infecting others. Frequent hand washing may help protect from infection. Wearing a mask will not protect you from the flu in most cases. More information about the H1N1 flu can be found at www.cdc.gov/h1n1flu/qa.htm.

To schedule a laser vision correction assessment or to learn more about laser vision correction call 403-547-9775 or contact us through www.westernlasereye.com.

What is laser vision correction - LASIK,Epi-LASIK, PRK, Intralase?

noreply@blogger.com (Western Laser Eye Staff) — Thu, 05 Nov 2009 05:25:00 +0000

Laser vision correction refers to any surgical procedure that uses an excimer laser to reshape the cornea. The cornea is the clear surface on the front of the eye through which you can see the iris (colored part of the eye) and the pupil. The laser is used to vaporize the tissue in a precise pattern which reshapes the corneal surface such that dependence on glasses or contact lenses is reduced or eliminated. This process of vaporizing corneal tissue by the excimer laser is called ablation. In Calgary there are several surgeons who offer a variety of laser vision correction options. The main four treatments are no-flap treatments which include Epi-LASIK and PRK, and flap treatments which are LASIK and Intra-LASIK.

The surgeon who performs the procedure is an ophthalmologist who is a medical doctor (MD) with a specialty in the diagnosis of eye disease, treatment of eye disease, and eye surgery. The surgeon should be board certified. A surgeon who is board certified in the United States is designated as a Diplomate American Board of Ophthalmology (Dipl. ABO) and in Canada as a Fellow of the Royal College of Surgeons of Canada (FRCSC). There are often optometrists who work in association with an ophthalmologist who may do the initial assessment at some centers. Other staff such as technicians will also participate in your care.

The types of staff involved in your care may include:

Ophthalmologist (MD): medical doctor specialized in eye care and eye surgery
Optometrist (OD): doctor of optometry trained in medical eye care
Certified Ophthalmic Medical Technician (COMT): the highest technician
designation that assistants in eye care can achieve through the Joint
Commission on Allied Health Personnel in Ophthalmology (JCAHPO)
Certified Ophthalmic Technician (COT): second highest level of JCAHPO
certification held by assisting staff
Certified Ophthalmic Assistant (COA): first level of certification available to
eye care assistants through JCAHPO
Counselors: staff specializing in giving detailed information to patients.
Receptionist: staff who will be involved in scheduling appointments.

Pay attention to the quality of the front office staff including reception and secretaries. A well run center should have prompt and courteous care starting from your initial telephone inquiry and throughout your visits. If you choose to undergo surgery you will be spending time with a variety of staff members during your testing, counseling, surgery, and post-operative care.

Laser vision correction is also called refractive surgery or laser eye surgery. The procedures can be divided into two groups: those with flaps and those without flaps.

The most commonly available specific types of surgeries are:

Photorefractive keratectomy (PRK): the original no-flap surgery introduced in
in the US in1988 by Margueritte MacDonald.
Epi-LASIK: the latest no-flap procedure in which an epikeratome is used to
remove the outer epithelial layer to prepare for laser application.
Laser in situ Keratomeleusis (LASIK): the first flap procedure introduced in the
1990s in which uses a mechanical microkeratome to create a flap.
Intra-LASIK: a newer flap procedure which uses a femtosecond laser to create a
flap.

For PRK and Epi-LASIK the surface corneal epithelial cells are removed and the laser is applied directly to the corneal surface. For PRK the surface cells can be removed using dilute alcohol or with a brush. For Epi-LASIK an automated device called an epikeratome is used to remove the surface cells to prepare the corneal surface for the laser reshaping.

PRK has been around for over two decades and has an excellent long term safety record. Epi-LASIK is a newer technique that creates a precise epithelial removal that will help speed recovery. Because there is no flap to protect the surface while healing, PRK and Epi-LASIK result in more discomfort for the first few days after surgery and take four to ten days before the vision is recovered enough to resume driving and/or work. Medicated drops may be recommended a few times per day for a number of weeks or months after surgery. The long term vision results are excellent. The simplicity of the surgical technique means there is a lower chance of complications during surgery and no flap that could become damaged or dislodged due to injury in the future. Recently many surgeons have returned to PRK and Epi-LASIK as their recommended vision correction surgery due to the low rate of complications.

With LASIK and Intra-LASIK a corneal flap is created and the laser treatment is applied to the bed of tissue under the flap. LASIK was developed in the 1990s. LASIK is a combination of an older technique called lamellar keratoplasty in which a corneal flap was created and PRK. It has been called “flap and zap” in the past. For LASIK a mechanical device called a microkeratome is used to create a corneal flap. Flaps can range in thickness from 90 microns to 180 microns depending on the device used. For Intra-LASIK an ultrafast femtosecond laser is used to create the flaps.

Vision recovery following a flap procedure is quicker than with a surface treatment. In an uncomplicated case the patient may expect some discomfort and blurred vision for the first twenty-four hours. By the following day in most cases patients will be legal to drive, although there is long term healing that will be occurring so some patients may find the vision continues to sharpen for a number of days to weeks. There is a higher risk with flap procedures due to the complexity of creating the flap and the possibility that the flap could become damaged or shifted if a future eye injury occurs. In rare cases flaps may be shifted even months or years later. In most cases common sense eye safety should protect you from this type of injury. However, if you are in a high risk occupation or have high risk hobbies PRK or Epi-LASIK may be a better choice. Although higher risk, some consumers will opt for LASIK or Intra-LASIK due to the shorter recovery.
There may be reasons why a specific type of vision correction surgery may be recommended as safest for your individual case. Alternatively you may be given a choice of procedures, in which case you will need to weigh the risks and benefits of each procedure to make the choice that is right for you.

Regardless of the type of treatment you choose - flap or no-flap - the laser reshaping will be the same. Each center will have a different laser which is capable of different laser patterns. Some systems such as the Visx S4 IR can do a true wavefront treatment which can treat both the prescription as well as the higher order aberrations. The difference between a wavefront laser pattern and a non-wavefront pattern is like the difference between a tailored suit and an off the rack suit. Some systems will do a treatment with a specialized blend zone called an aspheric treatment. Aspheric treatments are not true wavefront treatments.

Your choices for laser vision correction include:
1. Flap or no-flap.
2. For flap treatments the choice is LASIK or Epi-LASIK.
3. For no-flap treatments the choice is Epi-LASIK or PRK.
4. Choice of surgeon & surgical center.
5. Choice of wavefront treatment (if available) or non-wavefront treatment.

If you have the time to undergo an assessment at more then one center you will be able to learn more about the options available at each center. For more information or to book an assessment, contact us at 403-547-9775 or http://www.westernlasereye.com/.

Why do I have to leave my contact lenses out before LASIK, PRK, Epi-LASIK, and Inta-LASIK assessment and surgery?

noreply@blogger.com (Western Laser Eye Staff) — Tue, 22 Sep 2009 04:02:00 +0000

Many people are unhappy to be told to leave their contact lenses out before assessment or surgery when investigating laser vision correction. Some people who wear contact lenses full time don't even have a current pair of glasses to rely on when instructed to leave contacts out. For wavefront treatments it is important to have soft contact lenses out for at least 1 week and for rigid lenses it may be necessary to leave contact lenses out for 2 weeks or longer. It may be less frustrating to leave your contact lenses out if you understand why.

Contact lens wear can warp the corneal surface and in some people will lead to chronic dry eye. These surface changes can affect the testing including the corneal mapping results. In some cases, if the mapping is abnormal your eye care provider may ask you to leave contacts out for a longer period of time and suggest dry eye treatments to optimize mapping results. Corneal mapping is done to identify people who may have a high risk for corneal instability, also called ectasia, following laser vision correction. Abnormal maps may disqualify you from LASIK, PRK, Epi-LASIK, or Intra-LASIK.

For true wavefront treatments leaving contact lenses out for the recommended period of time is especially important since the measurements of higher levels of irregularity (higher order aberrations) will be used to create the individualized laser treatment plan. Rigid gas permeable lenses may need to be left out for a longer period of time for the cornea the return to it’s natural state.

Regardless of whether you choose to have refractive surgery, it is wise to have a current pair of glasses as back-up. There are a number of conditions including infection or injury which may require that you stay out of contact lenses, and it is difficult to obtain accurate glasses measurements in these situations. An up to date pair of glasses will allow you to be more functional during times when you may not be able to wear contacts.

For more information or to schedule a complimentary assessment contact us at www.westernlasereye.com or call 403-547-9775.

The role of the brain in Epi-Lasik, PRK, LASIK, and Intra-LASIK

noreply@blogger.com (Western Laser Eye Staff) — Sun, 19 Jul 2009 04:34:00 +0000

Proper functioning of the visual areas of the brain is critical in visual functioning. There are numerous disorders that can affect the brain causing visual disturbances. One of the more common disorders that is seen in people who are interested in laser vision correction is called amblyopia which is also known as a “lazy eye”. An eye that is “lazy” does not develop the proper connections with the brain and will have poor vision compared to a normal eye. Unfortunately laser vision correction can not improve an amblyopic eye beyond what the best acuity is with glasses or contacts.

Other conditions of the brain that can affect vision include stroke, and tumors. If you have a stable condition with some vision impairment you should discuss your condition with your surgeon before considering laser vision correction.

The brain is also important in the ability of adjust to changes in vision. For example some people will easily adjust to monovision where one eye is corrected for distance and the other for near vision. Other people can not tolerate this imbalance. For people that are very particular about their glasses or contact lenses laser vision correction may not be advised. It is not possible to guarantee that the two eyes will be exactly equal in acuity or that it will be exactly the same as the previous glasses or contacts. If you have trouble adjusting to new prescriptions you may not be a good candidate for laser vision correction.

Another factor in satisfaction with laser vision correction is your ability to cope with adversity. Although uncommon, complications may happen which might delay the recovery of vision or in rare cases cause a permanent loss of vision. If you suffer from depression or anxiety it may be more difficult for you to cope with a poor outcome. Don’t forget, the risk of laser vision correction is low but it is not zero.

To schedule a free laser vision correction assessment call 403-547-9775 or email a request to contact@westernlasereye.com.

What is Co-management for LASIK, Epi-LASIK, PRK, and Intra-LASIK?

noreply@blogger.com (Western Laser Eye Staff) — Sun, 12 Jul 2009 18:52:00 +0000

In cases where the surgery center is located far away, some surgeons are agreeable to co-managing with another ophthalmologist or optometrist. For this type of arrangement to work there must be good communication between providers.

Both the surgeon the eye care provider who will be doing follow up care must agree in advance in order for co-management to be effective. If there is a late complication the follow-up provider must be able to communicate with the surgeon and arrange additional visits or treatments with the surgeon if necessary. This arrangement works well for those who may live in more rural areas where they may have to travel into a metropolitan center to access laser vision correction.

Co-management

Co-management: describes an arrangement between the surgery center
and another eye care provider such as an optometrist.
Communication: for co-management arrangements to work there must
be excellent communication between the surgeon and the co-manager.
Benefit: for some people co-management is a great option due to
geographic reasons, if their usual provider has better hours, or if they
wish to continue care with a trusted provider

If you are interested in considering a co-management arrangement ask your current eye care provider if this is an option or speak to your laser vision correction surgeon. If you need more information about this topic or about laser vision correction, contact Western Laser Eye associate staff at www.westernlasereye.com or call 403-547-9775.

PRK, Epi-LASIK, LASIK, and Intra-LASIK in Calgary: how to they compare?

noreply@blogger.com (Western Laser Eye Staff) — Sun, 12 Jul 2009 17:17:00 +0000

There are a variety of options available to anyone considering laser vision correction in Calgary. In order to make a good choice it is important to understand the similarities and differences between procedures.

Similarities Between PRK, Epi-LASIK, LASIK, and Intra-LASIK

The following things are the same regardless of the type of laser vision correction procedure you choose:

- You will have to undergo an assessment to determine if you qualify for laser vision correction.
- There is some risk to any of the laser vision correction procedures – no technique is risk free.
- The most common side effects of all of the laser vision correction techniques are dry eye and rarely glare or halo with night vision
- The goal of all laser vision correction procedures is to reduce your dependence on glasses – none of the techniques will result in better vision than you have with your most up to date glasses or contact lenses.
- If you are 40 to 45 years old or older you will need reading glasses for close work unless you choose monovision.
- PRK, Epi-LASIK, LASIK, and Intra-LASIK all have excellent long term results. To date there have been no large scale studies to prove that the visual outcomes are better with any one of these laser vision correction techniques.
- Custom Wavefront or other types of customized laser vision correction can be done with any of these techniques.

Differences: Flap (LASIK and Intra-LASIK) Versus No-FLAP (PRK and Epi-LASIK)

As mentioned above, the long term outcomes of any of these procedures are equally good. The main difference between a flap based procedure and a no-flap surface treatment is that creating a flap carries a higher level of risk and gives more rapid recovery of vision in the first few days following surgery.

The risk of complications with flap creation is low, but it is possible that irregularities in the flap such as a buttonhole or partial flap may occur at the time of surgery. With no-flap techniques there is no flap to become involved in that type of intra-operative complication so the risk is lower. The flap may also be damaged or shifted months or years after surgery. This is very uncommon and in most cases the flap can be replaced and smoothed back into position with additional surgery.

There are a number of additional possible complications that are uncommon but can occur following a flap based procedure. I have co-authored the book “LASIK Complications” which has been translated into Spanish and Japanese and has gone into three editions – there is not a book called PRK Complications. While the risk of the no-flap procedures is not zero, it is lower because there is no flap that can become involved in these types of complications.

The reason the flap based procedures are so much more popular is due to the more rapid recovery of vision and earlier return to work. Most people are back to work within one to two days, although the night vision may take longer to recover. With no-flap procedures approximately one week is required to recover useful vision and the vision may sharpen up over a few weeks to a month following surgery. Most people undergoing laser vision correction with a no-flap technique will plan to take about a week off of work and may need assistance with young children or other duties for the first 3 days following surgery.

The other reason that flap based procedures became quickly popular when introduced in the 1990’s has to do with the older excimer laser technology and the past tendency for the formation of scarring and haze with PRK. Due to advancements in laser technology, medications, and surgical techniques the risk of visually significant haze is very low now.

The most feared complication of the flap based procedures is corneal instability called ectasia. Ectasia has been reported following PRK but is much more common with LASIK. Intra-LASIK and newer SBK (sub-Bowmans keratomeleusis) microkeratomes create very thin flaps which are thought to reduce the risk of ectasia. Thin flap techniques are very new and the prevalence of ectasia with thin flaps may not be known for several years as this condition can develop any time from immediately post-operatively to several years following surgery.

There is a significant amount of discussion recently about the risk factors for ectasia and the corneal biomechanics of creating a corneal flap. Some risk factors have been identified but there are some cases of ectasia in which no risk factors were apparent. Risk factors may include corneal mapping abnormalities, thin corneas, and family history of keratoconus.

Ectasia can not be corrected by further laser vision correction and requires treatment with customized contact lenses or in severe cases with corneal transplant. There are some surgeons who will only perform no-flap procedures due to this risk of ectasia, some are turning to thin flap procedures to reduce the risk, and others feel the risk of ectasia is so low that it is reasonable to give people a choice of procedures.

Differences Between Surgeries

PRK & Epi-LASIK: no flap treatment with laser applied to corneal
surface after surface epithelial cells are removed
LASIK & Intra-LASIK: flap is created and the laser is applied to
the interior corneal bed under the flap
PRK: surface epithelial cells are removed using a brush or by using
a dilute alcohol solution to soften the cells followed by manual removal
Epi-LASIK: surface cells are removed using an epi-keratome device
with an epithelial separator which uses a suction ring to stabilize the eye
LASIK: the flap is made using a microkeratome device with an oscillating
blade; a suction ring is used to stabilize the eye.
Intra-LASIK: a femtosecond laser is used to create a corneal flap; a
suction ring is used to stabilize the eye
Qualifying: some people may not qualify for flap procedures due to thin
corneas or other factors
Risk: PRK is the lowest risk followed by Epi-LASIK; flap procedures
have a mildly higher risk with Intra-LASIK felt to be safer than LASIK
Outcomes: depending on the study there have been some differences
discussed between procedures but there are no large scale studies to
show that one type of surgery is better than another over the long term
LASER: each center will have a particular type of laser which may
have the capacity to do customized treatments; the laser application will
be essentially the same regardless of the procedure type.

When given a choice between a low risk flap based procedure with a return to work within a few days and a lower risk no-flap procedure many people will choose the more rapid return to work and others will choose the lower risk treatment and accept the longer recovery. What it comes down to is each individual’s choice. If you would like more information or to book a free assessment contact Western Laser Eye associate staff at http://www.westernlasereye.com/ or call 403-547-9775.

Why is the price of LASIK, Epi-LASIK, and PRK different at different Calgary laser vision correction centers?

noreply@blogger.com (Western Laser Eye Staff) — Fri, 10 Jul 2009 04:30:00 +0000

Laser vision correction centers are businesses. Just as different retail chains offer different levels of service and products, laser vision correction centers vary on their business models. Some do higher volumes and have many centers and so can benefit from volume pricing on surgical supplies and pass that savings to their clients. Some centers offer more individual care with the surgeon before and after surgery such that lower volumes of patients are being treated but at a higher price.

Pricing can also be difficult to judge at first glance. Sometimes the advertised low price may only apply to very simple corrections and may not include enhancements. When searching for the right center to have vision correction surgery, it is wise to shop around to find the combination of price and service that fits you best. Be sure to find out what is included in the base price and who will be providing your pre- and post-procedure care.

Pricing not only will vary between centers, and it will also likely vary between procedures. For example, a standard laser treatment may be less expensive than a custom wavefront treatment due to the costs of providing the custom treatment. Some centers may have different prices for PRK, LASIK, and Intra-LASIK due to the costs associated with providing each of the different procedures. Some centers may price according to the strength of your prescription and some prices may not include retreatments or enhancements.

Price is an important factor but should not overshadow safety, effectiveness, and the level of service that you may need as an individual. As in all other consumer services you can not judge on price alone – each individual needs to weigh the price and levels of service offered by the various centers and decide which one is right for them.

Questions you may wish to ask about pricing include:

1. What are the prices for the surgeries you are considering for your individual case (some centers use a price scale based on your level of correction)?

2. Does the price include enhancements (touch up surgery) and for how long?

3. Who provides the pre- and post- operative care and when will you meet your surgeon?

4. Are all the pre-operative and post-operative visits included in the price?

5. Are there payment plans available?

6. Can the center provide documentation for spending accounts or insurance if needed?

You may be able to have some of the questions answered by speaking to staff at the laser vision correction center, but you may need to have a full assessment to get an accurate price for your individual case. Laser vision correction assessments can be time consuming, typically taking about 2 hours or longer and you will be asked to have a driver or alternate transportation due to the use of dilating eye drops; however it can be a good investment to have an assessment at the centers that you might be considering. This way you can learn what services you will get for the price. Price is one of many factors you will need to consider if you are thinking about having laser vision correction.

Which Calgary Laser Eye Centre has the best excimer laser?

noreply@blogger.com (Western Laser Eye Staff) — Sat, 16 May 2009 03:24:00 +0000

Whether you are considering LASIK, PRK, Intralasik, or Epi-LASIK in Calgary, you may be wondering which excimer laser is going to give the best results. Keep in mind that the laser while important is only one factor to consider when choosing a surgeon and center for laser vision correction.

There are 3 types of excimer lasers which are categorized by the laser beam profile. Broad beam lasers are able to ultilize a variable diameter pulse by using shutters. Scanning slit excimer lasers use a rectangular shaped beam which also can be varied by the use of shutters. The flying spot uses a fixed small diameter spot size.

Lasers will also vary according the eye tracking technologies. Eye tracking uses an infrared beam which to track the pupil in the vertical and horizontal meridians. The tracker follows small eye movements also known as saccades occur during laser treatment. If the pupil moves too far out of position then the tracker will stop the laser treatment. In many cases the surgeon will stop the treatment and realign the pupil even before the tracker automatically stops the treatment.

Some lasers also have a rotational tracker called cyclotorsion control. This rotational control is important for astigmatism corrections (astigmatism means your eye has 2 difference curvatures at 90 degrees to each other like a football or barrel). Cyclotorsion control is also important for wavefront treatments in which the higher order aberrations or more complex individual irregularities are corrected along with the nearsightedness, farsightedness, and astigmatism. Since the wavefront treatments are highly complex and individual a rotation of the eye will lessen the accuracy of the correction. Studies have shown that in some people the eye will cyclorotate up to several degrees between the upright and supine (laying down) position.

While the most commonly used lasers available today have a long and well established record of safety and effective results, the Visx Star S4 IR is the only laser available in Canada today which offers both a wavefront CustomVue treatment with iris recognition and cyclotorsion control.

The Visx Star S4 IR is a well established excimer laser platform with proven excellent results and is the laser which is most commonly chosen laser among North American surgeons. The Visx Star S4 IR also offers variable spot size and variable repetition rate which provides exceptional smoothness and lessens the possibility of haze.

When comparing excimer laser technology consider all the factors including whether or not a true wavefront correction can be performed and whether cyclotorsion control is available. Your surgeon will inform you if you qualify for laser vision correction and should be available to answer any questions you may have about the laser technology.

You should also consider carefully the options available at each center as these may vary. At Western Laser Eye associates Dr. Anderson Penno offers surface treatments PRK and Epi-LASIK which offer excellent long term results and carry less risk than flap based procedures such as LASIK and Intralasik.

Also consider surgeon availability for pre- and post- procedure consultations, cost, and retreatment options. The decision to undergo laser vision correction can be complex. Our staff is available to answer any questions you may have about our center, our technology, and our surgeon. Call 403-547-9775 or contact our staff at contact@westernlasereye.com to book your complimentary consultation with Dr. Anderson Penno.

Calgary: LASIK, Epi-LASIK, Intralase, PRK - How do you decide?

noreply@blogger.com (Western Laser Eye Staff) — Sun, 03 May 2009 02:36:00 +0000

Calgary: LASIK, Epi-LASIK, PRK, Intrase - how do you decide? Most people will shop around and compare prices when considering a large purchase. It's no different if you are considering laser vision correction. It makes sense to compare prices but how do you know what you are comparing?There are several differences to keep in mind.

First consider what procedure you may wish to undertake. There are differences in risks and benefits between the different treatments. Procedures which create a corneal flap such as LASIK and Intralase may offer more rapid recovery of vision with less discomfort but at a higher risk compared to surface treatments. Surface treatments like Epi-LASIK and PRK take longer to recover but are safer. Some centers have different pricing for the type of treatment and for the amount of correction. More information can be found on http://www.westernlasereye.com/ .

Another difference to consider is the type of laser treatment that is available at different centers. A standard laser treatment will correct nearsightedness, farsightedness, and astigmatism. Customized treatments such as the wavefront treatments available at Western Laser Eye Associates also correct individual irregularities in the visual system. Studies have shown that true wavefront treatment gives better results. Some centers have different pricing for standard or wavefront treatments.

Finally, the availability of the surgeon may vary between centers. In some centers such as Western Laser Eye Associates the surgeon will see you before, during, and after treatment. At other centers the surgeon may only see you on the day of surgery.It is important to make an informed choice. Be aware of what you will receive for the price. At Western Laser Eye Associates the pricing is simple, the care is exceptional, and Dr. Anderson Penno will see you before, during, and after surgery.For more information about the services provided by Western Laser Eye Associates contact us at http://www.westernlasereyeassociates.com/ or by calling 403-547-9775.

Calgary LASIK, Epi-LASIK, PRK: Patient Satisfaction

noreply@blogger.com (Western Laser Eye Staff) — Thu, 23 Apr 2009 04:27:00 +0000

April 1, 2009 Ophthalmology Times reported on a study by Dr. Kerry Solomon on LASIK satisfaction. Dr. Solomon was asked by the American Society of Cataract and Refractive Surgery (www.ASCRS.org) to review the world literature in response to a US FDA inquiry into complaints by LASIK patients. It is estimated that over 16 million people have had laser vision correction worldwide. In 2006 the FDA initiated an inquiry based on concerns raised by a group of LASIK patients.

Dr. Solomon's study identified 2,915 articles of which 309 were judged to be well designed. From these studies the data was pooled and analyzed. Satisfaction following LASIK was found to be 95% up to 6 months after surgery and 98.6% for questionnaires completed more than 6 months following LASIK. The most common reason for dissatisfaction was residual refractive error (a need for corrective lenses due to under correction, over correction, or regression). Some of these people may have been candidates for enhancement, and in studies that included people who had enhancements the satisfaction rate was higher. Other factors that lead to dissatisfaction after LASIK included dry eye and night vision symptoms.

LASIK involves cutting a corneal flap, lifting the flap, and performing the laser application on the underlying bed. Epi-LASIK and PRK are no-cut surface laser vision correction treatments that avoid the risks of creating a corneal flap and have been shown in many studies to have equally good or better results than LASIK. These surface treatments are safer than LASIK but do take longer to heal in the first days to weeks. Surface treatments like Epi-LASIK and PRK do not disrupt the corneal nerves as deeply and may be less likely to trigger a worsening of dry eye. With the use of CustomVue Wavefront treatment which corrects the individual higher order aberrations there may be less risk of significant permanent worsening of night vision.

For more information about laser vision correction or to book your complimentary evaluation call 403-547-9775 or go to www.westernlasereye.com.

April is Sports Eye Safety Awareness Month

noreply@blogger.com (Western Laser Eye Staff) — Mon, 20 Apr 2009 04:37:00 +0000

LASIK is still the most common laser vision correction procedure performed in Calgary and around the world, but surface treatment with PRK (photorefractive keratectomy) is becoming popular again along with a new surface treatment called Epi-LASIK. One of the reasons some surgeons in Calgary and elsewhere favor surface treatments over LASIK is the risk of flap dislocation following LASIK.

For many sports activities specialized eye wear is recommended. Unfortunately for some higher risk sports such as basketball safety glasses may not be routinely recommended. Other sports such as mountain biking or hunting may pose a risk when traveling through wooded areas. Recreational activities such as paint ball are also a risk for eye injury. More information about eye injuries can be found at www.geteyesmart.org .

Following LASIK the corneal flap heals around the superficial edge. It can be lifted surgically or shifted following an eye injury even years later. Although only a few people per year require treatment for shifted LASIK flaps, it can lead to a loss of vision if not properly treated within a short time. Epi-LASIK and PRK do not require the creation of a corneal flap. Instead just the very outer layer of cells called the epithelium is removed and the treatment is applied to the corneal surface. The long term results of Epi-LASIK and PRK equal to LASIK. The healing following surface laser treatments takes longer in the first few days to weeks, but there is no flap that could be damaged or shifted due to sports related or other eye injuries.

Whether you choose to undergo laser vision correction or not, always wear safety glasses for any activities where they are ordinarily recommended. For hockey a visor is recommended. When working in the yard with mowers or weed trimmers safety glasses will guard against stones that may be launched by these machines. Table saws, grinders, and other shop equipment also pose a risk for eye injuries. The few extra seconds it takes to put on a pair of safetly glasses can save you from a lifetime of poor vision.

For more information about your laser vision correction options contact us at www.westernlasereye.com or call 403-547- 9775 to book a complimentary assessment.

Calgary LASIK: What is Epi-LASIK?

noreply@blogger.com (Western Laser Eye Staff) — Sat, 11 Apr 2009 20:26:00 +0000

Western Laser Eye Associates is pleased to announce the acquisition of the Moria Epi-LASIK epikeratome. Epi-LASIK is the latest advancement in laser vision correction. Epi-LASIK combines the keratome technology of LASIK with the safety of surface PRK.

In Calgary as well as around the world LASIK has become very popular in the past decade due to the fact that there is more rapid recovery of vision and less discomfort in the first few days following surgery as compared to PRK. For LASIK corneal flap is made with a keratome blade or femtosecond laser in order to lift the flap and apply the laser energy to the deeper bed underneath the LASIK flap. Within the past few years some surgeons in Calgary have followed the worldwide trend to move back to surface treatments such as PRK due to the superior level of safety with equally good long term vision results.

Surface treatments like PRK and Epi-LASIK are safer because the surgery is simpler and avoids the possible flap related complications such as a buttonhole or partial flap that can occur with LASIK. Epi-LASIK and PRK are also safer than LASIK due to the fact that the treatment is not as deep and preserves more of the natural cornea to maintain the corneal strength and avoid the rare but serious complication called ectasia in which the cornea becomes unstable which results in poor vision within months or years following LASIK. This condition is uncommon following surface laser vision correction. Surface treatments such as PRK and Epi-LASIK also avoid the possible future risk of flap shifting which can occur even years after LASIK if there is an eye injury.

Surface laser vision correction eliminates the need to cut a LASIK flap. The surface cells are removed in order to apply the laser energy to the smooth membrane which is just underneath. For PRK these surface cells are either removed with a special brush or with a dilute alcohol solution (sometimes this technique is called alcohol assisted PRK). Both of these methods have been in use for many years and may be recommended for certain people with corneal scars or other conditions. Epi-LASIK uses an epikeratome with a blunt separator which can remove these surface cells more cleanly and without the use of chemicals.

For both Epi-LASIK and PRK a contact lens is placed for approximately 3 days. There is some discomfort with either of these treatments for those first few days until the contact lens is removed. The amount of discomfort varies from person to person with some people who need nothing more than frequent artificial tears and others who will need additional drops or oral medication such as Tylenol #3. It is important to rest and keep the eyes closed as much as possible for these first few days.

The difference between PRK and Epi-LASIK is most obvious after 3 days. There are more people who will be able to read the 20/20 line within 3 to 4 days following Epi-LASIK as compared to PRK where it may take 7 to 10 days to be within this range of vision. It is important to understand that surface laser vision correction involves a healing phase of up to 6 months over which time the vision continues to sharpen. Many people who have Epi-LASIK will be able to return to usual activities within 3 to 5 days, but it is important to keep in mind that while the vision may be in the legal range for driving it may still be somewhat blurred. Some people will limit their night time driving or have to take more frequent breaks from computer or other visually demanding work for a few weeks to a few months following Epi-LASIK.

Several studies have shown that the long term results are equally good for surface treatments like Epi-LASIK and PRK as they are for LASIK. Some studies have shown better results with surface laser vision correction than for LASIK for people having custom wavefront treatments such as CustomVue which is done at Western Laser Eye Associates.

Epi-LASIK offers excellent safety, more rapid recovery of vision compared to PRK, and outstanding long term results. For more information or to book a complimentary assessment call Western Laser Eye Associates at 403-547-9775.

What is Epi-LASIK?

noreply@blogger.com (Erica) — Tue, 10 Mar 2009 20:59:00 +0000

Epi-LASIK is an alternative to LASIK – another way to have laser vision correction. It is very similar to LASIK except for one important difference. It creates a thinner corneal flap. This makes it a good option for people with thin corneas.

LASIK and Epi-LASIK are both ways to reshape the cornea, the clear front part of the eye. By reshaping its curvature, they cause it to bend light differently so that it focuses clearly on the retina. When the light-sensitive retinal cells (at the back of the eye) receive a clear image, they send it to the brain for interpretation and naming, and the brain can give you a confident translation of what you are looking at. This is 20/20 vision.

When a person has thin corneas LASIK may not be safe. Corneal reshaping is done by removing tiny pieces of tissue from the right places. This is not done from the top level of the cornea, but from the middle layer, the stroma. A flap of surface tissue is folded back to give the laser access to the stroma.

In eyes with thin corneas the flap needs to be thinner. The epi-LASIK flap is only as thin as the top layer, the epithelium – hence the name “epi”-LASIK. None of the stromal tissue is included in an epi-LASIK flap.

Results from this way of doing laser vision correction are every bit as good as those from LASIK or from PRK. You can read more on Choosing Between PRK and LASIK, as this page also discusses Epi-LASIK.

LASIK, PRK and epi-LASIK can all be done using Wavefront Technology for the diagnosis. This will give you better night vision.

To determine which method of laser vision correction would be best for you, please call or email our LASIK office today for a free consultation.

LASIK and dry eye

noreply@blogger.com (Erica) — Mon, 09 Mar 2009 16:24:00 +0000

Dry eye is a common side effect of LASIK eye surgery. Moisturizing eye drops are always prescribed after surgery to encourage tear production and help the eyes stabilize. Even with these drops, however, some patients experience dry eye symptoms such as:
• Itchiness
• Blurred vision
• Burning
• Redness
• Pain

The good news is that these symptoms are generally temporary and will subside in the weeks and months following surgery.

Why does LASIK produce dry eye?
During LASIK eye surgery, Dr. Penno cuts a thin flap on the cornea so she can use a laser to reshape the cornea underneath the flap. When the corneal flap is created, small nerves in the cornea are cut which supply impulses to the lacrimal, or tear-producing, gland.

As a result, the patient’s eyes are not able to produce the proper amount of lubrication. This is usually a temporary condition that corrects itself in the weeks following surgery as the nerves regrow.

Can I have LASIK surgery if I have dry eye?
If you already have symptoms of dry eye you may be able to undergo LASIK. During a thorough examination, Dr. Penno may determine that in your case it would be safe.

It may also be prudent to insert collagen or silicone punctal plugs into the openings where tears drain out of the eyes (called puncta, singular is punctum). These plugs can remain in the eyes for weeks or months and keep better lubrication on the eyes prior to surgery.

If you suffer from severe dry eye you may not be a good candidate for LASIK.

It is important to share your medical history with Dr. Penno during the consultation, including dry eye symptoms and all medications you are taking. This will help us to give you the best treatment options possible.

For a free evaluation, please contact our LASIK office today to see if you are a good candidate for this popular surgery.

LASIK and the military

noreply@blogger.com (Patti) — Fri, 06 Feb 2009 23:09:00 +0000

Imagine being on an intense battlefield, fighting for your life and the lives of your troops. The last thing a soldier would want to think about is dropping or breaking eye glasses in a combat situation.

But many who are nearsighted or farsighted or who have astigmatism are forced to wear eye glasses or special goggles to correct their vision problems, even in combat. The ability to effectively complete missions under these circumstances can lead to injuries and lives lost. In addition, contact lenses in dusty landscapes can be hazardous to a soldier’s eyes, even when not in combat.

As a result of these hazards and to help protect the lives of military personnel, the U.S. Army, Navy, Air Force and Marine Corps now permit Wavefront LASIK eye surgery for most military personnel. One exception is that LASIK is not approved for military pilots at this time. The U.S. Navy did allow four of its aviators to undergo LASIK surgery in November of 2006, so this rule may change in the future. In addition, some Special Forces units are not permitted to undergo LASIK surgery.

Millions of people have had LASIK eye surgery since it was approved by the U.S. Food and Drug Administration (FDA) in 1995. The fact that the military now accepts WaveFront LASIK eye surgery for its military personnel is a testament to the success of the procedure and how LASIK can help save lives on the warfront.

If you would like to learn more, please contact our LASIK office today to arrange a free evaluation.

LASIK for pilots

noreply@blogger.com (PaulaB) — Fri, 09 Jan 2009 17:00:00 +0000

Airline pilots rely on their sense of sight more than any other sense to safely transport people from location to location. The burden of wearing eye glasses or contact lenses to help correct nearsightedness, farsightedness, or astigmatism leads many pilots today to look into LASIK eye surgery.

While most people can resume work in a few days after LASIK eye surgery, it is recommended that pilots be especially cautious about their recovery time. In fact, many airlines require a six-week waiting period after LASIK surgery before piloting to ensure they meet Federal Aviation Administration vision standards.

As with any elective surgery, LASIK eye surgery does have potential risks and complications that could hinder a pilot’s ability to properly do his or her job. Those possibilities can include:

Visual aberrations (double vision, glare, starbursts, etc.)
Dry eye
Blurring
Haze
Irregular flap healing
Corneal scarring
Infection

These risks are greatly reduced when your eye surgery is performed by a qualified, experienced surgeon like Dr. Anderson Penno. Dr. Penno has performed several thousand refractive surgeries since 1996 and personally takes time to ensure each patient is a good candidate for LASIK.

The possibility of a pilot losing or breaking glasses or contacts prior to a flight can have a potentially disastrous effect on the outcome of the flight. If you are a pilot and would like to learn if you are a candidate for LASIK, please contact our eye surgery office today to arrange a free LASIK evaluation.

LASIK for athletes

noreply@blogger.com (PaulaB) — Mon, 29 Dec 2008 23:35:00 +0000

If you are an athlete and do not have perfect vision, you are probably all too familiar with the hassles of wearing eye glasses or contacts while playing sports. LASIK laser refractive eye surgery is a way for you to shed those burdens and let a 20/20 vision take your game to a new level.

At Western Laser Eye Associates, we are committed to helping patients gain the best eyesight possible. And for athletes this is especially important. The ability to play a sport without being hindered by eye glasses or contacts can not only improve your game, it can also help save you from possible harm.

Consider these situations:

Eye injury: caused by shattered eye glasses, torn contact lenses, sweat or dirt underneath contacts, dry eyes due to contact lenses
Lessened playing ability: caused by eye glasses limiting peripheral vision, contact lenses that fall out during play, rain or snow limiting vision in eye glasses

LASIK can help patients who have lived for years with eye conditions such as:

Nearsightedness
Farsightedness
Astigmatism

Not every athlete is a good candidate for LASIK eye surgery. Those who play aggressive contact sports may be at a higher risk for infection or damage to the cornea. We will fully evaluate your eyes, medical history and lifestyle to determine if you are a good LASIK candidate. If you are not, there may well be another procedure that would work.

Please contact our LASIK office today to arrange a free evaluation.

What is 20/20 Vision?

noreply@blogger.com (Patti) — Wed, 17 Dec 2008 21:25:00 +0000

If you have been told you have 20/20 vision, you have what has been defined as humanity’s “normal” eyesight. You can see clearly at all distances. Those numbers refer to feet from an eye chart.

The typical eye chart has a large “E” at the top and lines of smaller letters underneath. When your eye doctor tests your vision for glasses or contact lenses, you look into a device called a phoropter. You are asked to read the smallest row of letters you can clearly see, and the doctor flips from lens to lens asking you to compare: “Which is clearer, this … or this?”

The phoropter is simulating your distance from the eye chart. In the expression “20/20”, the first number refers to the tested eye’s distance in feet from the chart. The second number changes according to your visual acuity.

If you have 20/40 eyes, you must be only 20 feet from the chart to see what “normal” eyes can see clearly from 40 feet away. You are mildly nearsighted.
If you have 20/100 vision, you are more nearsighted, and normal eyes can see at 100 feet what you can only see from 20 feet away
Legal blindness is defined as 20/200, where the eyes being tested must peer at the letters from 20 feet way to see what “normal” eyes can see from 200 feet away.

“Better Than Normal” Vision
After having a Custom LASIK procedure, some people achieve 20/16 vision. That means their visual clarity is better than what is considered normal. In terms of the eye chart, they can see from 20 feet away what a “normal” person must be only 16 feet away to see clearly. These superior results are possible because Wavefront technology is used for diagnosis instead of a phoropter. It gives a more microscopically precise picture of your eye contours, which means your LASIK treatment can be more precise.

Please see our page on How the Eye Works for more detail on eye anatomy and how an eye can be nearsighted, farsighted or astigmatic.

To learn more about what LASIK could do for your vision, and to learn more about your eyes, please contact our office for a personal consultation with Dr. Penno.