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Table of Contents
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 Central Islands, Diane - Verona, NJ, 8/20/99
  Central islands. Please ask f..., William B. Trattler, MD Miami, FL 8/25/99, (#1)
 topography driven software?, Karen - Concord, MA, 1/21/2000, (#2)
Customized laser in US, William B. Trattler, MD Miami, FL 1/22/2000, (#3)
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"Central Islands"
Posted by Diane - Verona, NJ on 20:02:40 8/20/99
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I am 3 weeks post op and am very happy with my lasik. My right eye is perfect 20/20 but my left eye is 20/35. A topography was done recently and a central island was noticed in my left eye. There are also some wrinkles that are going to be smoothed out in 3 days. I have seen 5 opthamogists which agree that the wrinkles are severe enough to blur my vision. I was wondering, however, could this central island also be causing problems? Do central islands go away on their own? I would appreciate any info. on this topic. Thanks in advance.
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1. "Central islands. Please ask further questions if this does not answer your question completley"
Posted by William B. Trattler, MD on 03:32:14 8/25/99
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What is a Central Island?
A central island is a condition that can occur with both LASIK and PRK. Basically, the central portion of the cornea is insufficiently treated with the laser. The deeper tissue removal around the edge of the treatment zone results in an ablation pattern similar to a mountainous island in the center of a flat ocean. As you can imagine, if the goal of laser for myopia is to flatten the entire cornea, a central island is not the desired effect.
What is the cause of a Central Island?
The cause of central islands are varied and are still under investigation.
What is the treatment of a Central Island?
The initial treatment in many cases of central islands is observation, as the central island will often resolve on its own. However, there are some situations in which the surgeon will intervene early. If the surgeon chooses to wait and the central island has not completely resolved, then an enhancement procedure may improve the situation. With the availability of custom software (or topography-driven software), the treatment of central islands with the laser may become even more precise. As Always, careful discussion with ones surgeon is of primary importance.
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2. "topography driven software?"
Posted by Karen - Concord, MA on 11:14:01 1/21/2000
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is it available yet? if so, is there anyone in new england that's using it? thanks!!
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3. "Customized laser in US"
Posted by William B. Trattler, MD on 12:23:09 1/22/2000
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Dr. Margarete McDonald is currently the main investigator for the autonomous laser company, and she is working with wave-front technology and customized laser ablations. She is located in new Orleans. I do not know of anyone in new England doing this
Best of luck
Bill Trattler, MD
Miami,FL
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