Refractive vision correction performed under a flap (LASIK) offers numerous advantages over refractive vision correction performed on the cornea’s surface (PRK). Notably, there is a more rapid improvement in vision and decreased discomfort with LASIK since the surface epithelial cells have been preserved and do not need to regrow.

This is undoubtedly the reason that LASIK has become the corrective surgery of choice for both doctors and patients. However, in some patients, PRK is a safer alternative that may promise better outcomes.

Patients who might benefit from PRK eye surgery include those whose cornea might be too thin for LASIK, or in some patients with corneal irregularities or scars.

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LASIK or Lasik (laser-assisted in situ keratomileusis) is a type of refractive eye surgery for correcting Myopia, Hyperopia and Astigmatism.

LASIK is performed by Ophthalmologists using a laser. LASIK is similar to other surgical corrective eye procedures such as Photorefractive Keratectomy, PRK, (also called ASA, Advanced Surface Ablation) though it provides benefits such as faster patient recovery. Both LASIK and PRK represent advances over radial keratotomy in the surgical treatment of vision problems, and are thus viable alternatives to wearing corrective eyeglasses or contact lenses for many patients.

LASIK has been performed internationally for approximately 10 years. It was first performed in clinical trials in the U.S. in 1995. It is important to note that the major components of the procedure have a long history. Ophthalmologists have been reshaping the cornea for over 50 years, creating a protective layer of tissue for over 35 years, and using the excimer laser since the 1980s.

LASIK is only one type of refractive surgery available to patients. If however you are not eligible for LASIK, you may be eligible for a different procedure.