P3D Re: Older people with glasses...

[jacob@xxxxxxxxxxxxxx (Gabriel Jacob)]

>>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 :-)
>
>Bob Wier

Your exactly right on that point, regarding getting far sighted with age.
Upon second reading of my original post I see where, it could lead
to confusion. I should have elaborated and said that the closer you can
focus your finger (or whatever) this is an indication of a younger
person's eyesight.

Gabriel


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