LASIK vs. PRK: Understanding the Difference
Both PRK and LASIK are laser vision correction procedures for the elimination of nearsightedness, farsightedness and astigmatism. PRK, and its slight variations (Epi‐LASIK and LASEK), is the older of the two procedures. The re‐shaping of the cornea by the “cold” laser takes place on the surface of the cornea. With LASIK, the laser reshaping treatment takes place underneath a flap. The flap can be created with another laser known as a femtosecond laser, as is the case in i‐LASIK or “No Blade” LASIK. When the flap is not created by another laser, it is “cut” by an instrument known as a keratome. For many years, LASIK was by far the most commonly performed vision correction procedure. LASIK, has entered the everyday vocabulary and is used commonly when referring to any laser vision correction procedure. It’s quick, about 10‐15 minutes for both eyes, and the recovery takes place practically overnight.
More recently, PRK, today known also as Epi‐LASIK, LASEK or Advanced Surface Ablation, has seen resurgence as there is a desire on the part of some doctors and patients for even greater safety. Furthermore, a significant number of people may not be candidates for LASIK—their corneas are too thin, but are excellent candidates for PRK. PRK is also the procedure of choice for those with occupations involving exposure to physical trauma, or for those who participate in extreme or contact sports. For PRK, Epi‐LASIK and LASEK, the recovery is a little longer than with LASIK, generally a weekend of rest is required, but the final results are identical.
PRK and LASIK are just two of several permanent vision correction procedures that Dr. Saimovici, a comprehensive vision correction specialist, can offer to his patients. If you are interested in eliminating your dependence on glasses and contacts, it is best that you come in for your complimentary comprehensive evaluation with Dr. Saimovici to discuss your options.
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