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[Bob Wier <wier@xxxxxxxxxxxxxxxxx>]

=================in WHILE stmt
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Subject: P3D Re: Older people with glasses...

|
|I remember reading (but don't remember where) that the eyes close distance
|focussing ability is related to age. You can tell your "age", by how
|close you can focus your eyes on an object; such as their finger.
|
|Gabriel

I'm probably wrong in the way I'm remembering this, but my eye doctor
once told me that at age 10, the eye can typically focus over a range
of 7.5 diopters, whereas after 40 it may be down to less than 2
diopters. Typically you get far sighted (have to hold things away
from you to focus), but I'm going the other way - I can see my terminal
screen fine without glasses, but have to wear 'em to drive (at least
if I want to read the road signs :-)

P.S. - it's a real downer the first time you renew your drivers license
and get the "Corrective Lenses Required" stamp...

               Bob Wier
         mailto:wier@xxxxxxxxxxxxxxxxx
  10:03 PM  Wednesday, November 26, 1997
     Rocky Mountain College, Billings MT.
 keeper of the Photo-3d and Overland-Trails
mailing lists and the USA GPS Waypoint server 



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