P3D Older people with glasses...

[jacob@xxxxxxxxxxxxxx (Gabriel Jacob)]

Okay, now that I got all my personal correspondance out in the open,
here is something for the public.

Dr.T writes

>I don't have any data (sorry Greg!) but I imagine the probability of having
>vision problems that interfere with stereo perception increases with age. 
>I have nothing against older people and I love to listen and learn from
>them, but this might not be the best group to get interested in stereo.

Actually there is cold hard facts to support this. Vision does go down
hill, especially after age 40. As to it interfering with stereo perception,
that seems to make sense, but haven't seen any data on this specifically.

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


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