Overhead Projectors and Blinding Lig... 
Hazel
21 y
1,060
I use overhead projectors daily and am concerned about the blinding light and the longterm effects it can have on vision. The manufacturer will not state definitively that they are safe. I have not been able to locate any studies on the topic.
Any suggestions, experiences, guidance. \
Thank, Hazel- Re: Overhead Projectors and Blinding... UserX
21 y
791
MoreThis is a reply to # 121,331Get a pair of the non glare / glare blocking glasses.
Make sure you take frequent breaks - at least once per hour and rest your eyes. I've never seen studies either, but intuitively can see (sorry for the pun...) your concern.
- Re: Overhead Projectors and Blinding... UserX
21 y
791
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