Re: Stereo Difficulty

[P3D jon siragusa <siragusa@xxxxxxxxx>]

Dr. George A. Themelis wrote:
>
>Jon Gross asked about possible correlations among people who lack
>stereopsis, possibly increased automobile accidents?   Somehow I don't see
>how stereopsis helps in driving, assuming that you have two otherwise
>healthy eyes.  I don't think that stereopsis is a required test to obtain a
>driving license (in the USA at least).
>

When i was 15 and applying my drivers permit, i remember not wearing
my glasses/contacts (i didn't have to drive, just pass a written exam).  
Before the exam they gave me an eye test and part of it involved looking 
through a device which displayed objects at varying depths and i was
supposed to say which object were closer/farther.

Anyway i failed... probably because i didn't have my contacts in.  If
i remember correctly, at that point one eye was stronger than the other.
I don't know if it was enough to make a difference in my depth perception
but the end result was that i had to retake the eye exam (with contact
lenses this time).  I passed.

This was in Vermont.  I don't know if they still require this test or
if other states do.

jon


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