Re: Computer Monitor Ruining Night Vision?

Richard Amirault wrote:
AND .. some people simply have WORSE night vision than others. It has
nothing to do with age or anything else suggested by the answers here ..
some folks just can't see dim objects as well as most folks (nothing to do
with 20/20 vision either)

Are you talking about some cases of not being able to see dim objects as
well as others, or most of them? I think that for many cases, acuity
*is* a prominent factor. If an object is blurry, its surface brightness
is reduced, making it harder to see dim ones.

Sky and Telescope had an article about this recently--look up night
myopia. People have differing ideas about what causes night myopia, but
they don't disagree on one point: that it reduces your estimate of the
limiting magnitude. Correct for it, and your limiting magnitude (with
the unaided eye) should increase--sometimes significantly.

Of course, some people *do* have lower sensitivity to light, but I think
that's only part of the story.

--
Brian Tung <brian@xxxxxxx>
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