Tuesday, February 12, 2008

Cornea ectasia

two theories:
  • certain patietns have a genetically different type of collage composition of their cornea that predisposes them to ectasia (external factors such as eye rubbing, RGP wear and refractive surgery may trigger the process of thinning)
  • insult to collagen corneal fibrils via surgery, trauma, RGP wear or eye rubbing causes the corneal matrix to lose structural integrity

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