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What is the difference between PRK and LASIK for eye correction?

If you are thinking about having laser eye surgery done to correct a refractive vision problem, PRKand LASIK are the usual options. But what are the procedures like, and what is the difference between PRK and LASIK for eye correction.

PRK (photo refractive keratectomy) and LASIK (laser-assisted-in-situ keratomileusis) are two laser vision correction techniques. They can both be used to treat refractive errors such as nearsightedness, farsightedness, and astigmatism. They both reshape the cornea to improve vision, but the steps used to accomplish this are somewhat different.

What is the difference between PRK and LASIK for eye correction?
With PRK, the surface layer of the cornea is removed, and the laser is then used to reshape the cornea. However, with LASIK surgery a thin layer of cornea is folded backwards to create a flap,and the laser is subsequently used to reshape the inner layers of the cornea. The flap is then replaced.

Since the thin outer layer of the cornea is removed during PRK, the recovery time is longer, as theexternal membrane takes several days to heal. In addition, PRK patients generally experience more discomfort after surgery, and their vision can take several days or weeks to stabilize.

On the other hand, there is less discomfort and a shorter recovery time with LASIK surgery, and most patients are able to see normally within a few hours of the procedure.

Are you interested in laser vision correction? Search our directory to find a practice in your area.

If you are in the Reston, VA area, New View Eye Center is our featured practice.

You can reach them at www.newviewlasereye.com or by calling 703-834-9777.

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