PRK
What is PRK (Photorefractive Keratectomy)?
PRK, also known as Photorefractive Keratectomy, is a laser vision correction procedure used to improve vision, as well as reduce or eliminate the need for glasses or contacts. This procedure uses the excimer laser to reshape the curvature of the eye to correct nearsightedness, farsightedness and astigmatism.
To treat nearsightedness, the steep cornea is made flatter by removing tissue from the center of the cornea. This moves the point of focus from in front of the retina to directly on the retina.
To treat farsightedness, the flat cornea is made steeper by removing tissue outside of the central optical zone of the cornea. This moves the point of focus from behind the retina to directly on the retina.
To treat astigmatism, the cornea is made more spherical — like a basketball instead of a football. This eliminates multiple focusing points within the eye and creates one point of focus on the retina. Astigmatism can be treated at the same time as nearsightedness and farsightedness.
Are You a Candidate?
If you are at least 18 years of age, have good eye health with no diseases such as cataracts or glaucoma, and are in good overall health, you may be a candidate. To determine your candidacy, you must undergo a thorough eye exam with your licensed optometrist or ophthalmologist. It is also essential that the doctor discuss your expectations for the procedure and your lifestyle. Although PRK has successfully eliminated or reduced the need for glasses or contact lenses for many people, it is not for everyone.
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