"Corneal thickness" Posted by donna - san diego, AL on 10:48:59 7/09/2001
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After lasik surgery I found out my corneal thickness was 340, 370. What is the possibility I could have problems as a result of this.
1. "Corneal thickness" Posted by Mitchell - Colorado Springs, CO on 22:59:42 9/01/2001
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I would be curious to that question as well. I had lasik complications and poor post operative care which degraded my corneal thickness. How is it determined where the point is at which an enhancement is not an option?
2. "It's All a Guess based upon experience" Posted by Terri on 12:12:47 9/03/2001
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Donna,
Corneal thickness is generally given with the flap thickness included. If your flap was a 130 flap (which can range from 110-150) and came in at 130 then you have 210 and 240 microns remaining. This is much too thin for an enhancement.
Mitchell,
Most doctors use 250 microns as the thinnest allowable but even this is only a guess. Some people develop ectasia with 300 or more microns left after lasik and others are ok with 250. It simply differs from person to person. It's really all a big guess. Most of us former high myopes wish we could go back as it seems that anyone with myopia greater than -8 or so is just asking for trouble (even when we are labeled "perfect candidates" and Tiger Woods's successful 20/15 vision from his original -11 is dangled before us).
There is a thread on the surgical eyes board (www.surgicaleyes.org) where Mermaid had a lamellar corneal transplant using an interlase laser by a Dr. Feinerman in California to fix her various problems from lasik. The doctor mentioned that with the graft he increased her corneal thickness from 425 to 573. It looks like similar procedures will someday be able to fix lasik induced ectasia. There is one patient there who had the same procedure a few years ago (before the laser assisted part) who was able to get to a crisp, clear 20/30 in that eye with glasses. It seems that Mermaid may be able to do a bit better since the transplant part was able to be lasered to the exact size rather than hand cut. The doctor said that her cornea was really clear now with all the lasik-induced irregularities gone. For more information go there and search on "Mermaid", "lamellar", "feinerman" and "nordon" separately in the search engine to find the threads from August and September 2001.
Terri
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