LASIK and PRK/Epi-LASIK

LASIK

LASIK improves vision safely and precisely by reshaping the cornea to correct nearsightedness (myopia), farsightedness (hyperopia) and astigmatism. Vision improves within minutes, and most patients eventually enjoy 20/20 vision or better after treatment.

The most commonly performed elective surgery in America, LASIK combines the advantages of two sophisticated technologies: the accuracy of the excimer laser and the benefits of lamellar keratoplasty. It is safe, precise and highly successful. Thanks to LASIK, millions of people worldwide have experienced the wonder of clear vision without glasses or contact lenses.

LASIK offers many improvements over other refractive surgery procedures. These include little or no post-operative discomfort, immediate vision improvement, and the ability to drive or return to work quickly—sometimes as soon as the next day. Most patients require no corrective eyewear after surgery (although patients over 45 often need reading glasses).

Call today to schedule your consultation and find out you are a candidate for LASIK. Soon you could be tossing away your glasses or contact lenses and enjoying the freedom of clear vision.

Am I a candidate?

Not everyone is a good candidate for LASIK. When you come in for an evaluation, your eyes will be examined to determine whether LASIK or another refractive procedure is appropriate for you, and whether you are at risk for any complications.

The ideal LASIK candidate:

• Is over 18 years old;
• Has had stable vision for at least six months;
• Has a healthy cornea thick enough for a flap;
• Has refractive error(s) that fall within the treatable range;
• Does not have a disease or condition that could impair the procedure or healing process;
• Has been educated about the procedure including its risks and benefits.
• Understands that the goal of surgery is to improve vision and reduce dependence on glasses and contact lenses.

PRK

PRK or photorefractive keratectomy is one of the safest and most time-tested laser vision correction procedures available. Like LASIK, it reshapes the cornea to improve vision.

The first step in PRK is to remove the epithelium, a thin layer protecting the cornea. Then the surgeon uses an excimer laser to vaporize a small amount from the top of the cornea. LASIK, by contrast, cuts a deep flap in the cornea using a sharp microkeratome blade. This weakens the cornea, makes it difficult to replace the flap in precisely the right place, and can cause other complications including flap irregularity, epithelial ingrowth and corneal ectasia. PRK avoids these risks.

Studies have shown that 90-95% of patients with a correction of up to -6.00 diopters achieve vision of 20/40 after PRK, and up to 70% achieve 20/20. Patients needing less correction generally achieve better results. The risks of PRK include infection, haze, slow healing, scarring, over- or under-correction of the visual condition, and development of astigmatism.

Epi-LASIK

Introduced in 2000 by the inventor of LASIK, Epi-LASIK combines the best features of LASIK and PRK while reducing complications such as haze and halos, dry eye, loss of nerve sensitivity, post-operative pain, vision regression and continued need for eyewear. Like PRK, Epi-LASIK affects only the surface of the cornea. Like LASIK, it involves making a flap of corneal tissue to reduce pain.

During Epi-LASIK a blunt microkeratome smoothly separates the surface layer, or epithelium, from the cornea. This thin flap is what gives the procedure its name: "Epi" stands for the Greek word "Epipolis," meaning "superficial." This avoids complications associated with the deep stromal flaps of ordinary LASIK including flap irregularity, epithelial ingrowth and corneal ectasia. Also, using a microkeratome to create the flap preserves cell integrity better than the alcohol solution used in the LASEK procedure.

Next, a laser reshapes the surface of the cornea to improve vision. The epithelial flap is then replaced and covered with a protective contact lens. The flap heals in a few days with very little pain and without stitches.

To have Refractive surgery done, should be one of the most rewarding experiences of your life!

Please Click Here to download a patient information sheet about LASIK and PRK/EPI-LASIK

Please discuss any concerns or queries with Dr. Daniel Senekal, Ophthalmologist, by email or phone Peace Lasik Centre at (780) 538-9997 - ext. 3

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