| Thread | Last Post | Replies |
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| contrast sensitivity, visual acuity, and Photoshop | 07 Nov 2009 18:29 GMT | 5 |
Argh!
I've been reading about "contrast sensitivity", "visual acuity", and
wonder what the difference is. When I try to find this out, I am
immersed in "cycles per degree". When I try to find out what that is,
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| Color Correcting Lens Coatings? | 07 Nov 2009 12:28 GMT | 9 |
I haven't visited this ng in a few years, but...
A number of years ago, I remember reading about a new development that
would allow (partially?) color blind people to discriminate colors
better. I believe it used thin film coatings to selectively attenuate
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| Relief of Blindness at the Clinic | 07 Nov 2009 02:35 GMT | 10 |
[...]
Stories from the Clinic
13: The Relief of Blindness
By Emily. C. Lierman
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| Would Prism from bad PDs cause damage? | 05 Nov 2009 19:59 GMT | 9 |
Hi all. I wore a pair of glasses for a long time, circa 8 years
actually, with the PDs set wider than my eyes. I'm a -5.5 myope with
some cylinder (-0.5 in left, -0.75 in right - I think it should be -1
but whatever...). The PDs were probably about 63 and I'm 57.
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