LASIK
Requires the surgeon to use a surgical instrument called a microkeratome to create a corneal flap. A portion of the flap remains attached to the eye (as a hinge) while the remainder is gently lifted up and back, exposing the inner cornea. The flap is then returned to its original position.
- • No stitches are required as the flap stays in place by the natural pressure of the eye.
- • Eye medications are used for up to one week, and the patient typically can resume normal activities within three days. Most of the healing process takes place within a week. However, it may take 1-3 months for your vision to stabilize completely.
- • Many LASIK patients experience only 5-6 hours of discomfort as the surface (epithelial) layer heals. A non-prescription pain reliever, such as acetaminophen, aspirin, etc., may be used to ease discomfort.
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PRK
Involves removal of the top surface layer of the cornea called epithelium, exposing the inner cornea. A computer-assisted laser re-sculpts the curvature of the eye to achieve vision correction.
- • No needles or incisions are required.
- • Eye medications are used, and plano contact lenses are placed on each eye to prevent infection. These lenses are removed within 2-5 days after surgery. The surface (epithelial) layer will begin to regenerate, and the healing process will take up to 3-4 months. During that time eye medications will be used to promote healing and prevent infections.
- • PRK patients usually take pain relief medication for 1-2 days post-operatively. This is due to the fact that most of the pain fibers in the cornea are located in the surface portion where PRK is performed and where the healing process occurs.
- • With PRK there is a small risk of problems arising due to an irregular healing response and/or infection. These can generally be treated with medications.
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