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Biotech / Medical : Summit Technology (BEAM) -- Ignore unavailable to you. Want to Upgrade?


To: Paul Kelly who wrote (1185)4/11/1999 4:40:00 PM
From: Joe  Read Replies (1) | Respond to of 1386
 
Paul

The onset of the need for reading glasses naturally occurs between the ages of 40 to 45. This is called presbyopia. When someone starts needing readers at the age of 35 to 40, they are hyperopes. The onset of presbyopia or hardening of eyes crystaline lens becomes evident earlier to the hyperope.

Joe