Thread: Five Times More Oxygen With Acuvuer Advance?
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Old 10-19-2011, 02:09 PM
Iseeall Iseeall is offline
Contact Lenses Forum - Senior
  
Join Date: Dec 2007
Posts: 377
Default Mysterious Mystery
Quote:
Originally Posted by captainneo View Post
Indeed. Why do the letters d, k, and t represent the amount of oxygen that makes it through a contact lens?
The world may never know . . .
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