Arcus senilis - Why is there a clear space between it and its source please

Subject: Arcus senilis - Why is there a clear space between it and its source please

Date: Sat Dec 20 14:56:38 2003
Posted by steven
Grade level: grad (science) School: city university
City: london State/Province: No state entered. Country: uk
Area of science: Medicine
ID: 1071953798.Me

Message:


Arcus Senilis is due to cholesterol and must come from the limbal blood supply. 
But why does it appear not against the limbus - but one mm inside the clear 
cornea? How does the cholesterol 'jump' the clear gap - and why? I would expect 
the cholesterol to diffuse over the whole cornea - but it keeps to a band - 
what is the mechanism. Thank you = stephen

Re: Arcus senilis - Why is there a clear space between it and its source please

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