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Administrator   Firstname: Marc Gender:  Joined: 28 Aug 2004 Posts: 29422 Chats: 11081 Location: Hennef  | It is estimated that up to 80% of the myopic population may physically qualify as potential PRK candidates.[citation needed] There are a number of basic criteria which a potential candidate should satisfy: Normal ocular health Age 19 years or older Stable refraction error (no noticeable change in the last year) correctable to 20/40 or better Between -1.50 to -7.00 diopters of Myopia No gender restriction, with the exception of pregnancy Realistic expectations of the final results (with a complete understanding of the benefits, as well as the possible risks) Pupil size 6 mm in room light There are also some pre-existing conditions that may complicate or preclude the treatment. Collagen vascular disease (e.g., corneal ulceration or melting) Ocular disease (e.g., dry eye, keratoconus, glaucoma) Systemic disorders (e.g., diabetes, rheumatoid arthritis) History of side effects from steroids | ||
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| Similar Topics | Author | Replies | Views | Last Post | |
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 | PRK versus LASIK Because PRK does not involve a permanent flap in the deeper corneal layers (the LASIK procedure involves a mechanical microkeratome using a metal blade or a femtosecond laser microkeratome to create a 'flap' out of the outer cornea), the cornea's... [ General ] | mgutt | 1 | 2386 | 21.04.2009, 16:43  razib1099 |
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