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Eye Care (Expert Forum)
Night and Day Vision?
Answered by
Cabarrus Eye Center
NC
Our Ask A Doctor Ophthalmology Forum is where you can post your question and receive a personal answer from physicians affiliated with the American Academy of Ophthalmology.
Night and Day Vision?
by slim1984, Nov 05, 2009 02:22PM
Is it possible to require a higher prescription at night as opposed to the day since there's less light and it's slightly harder to see at night?
Doctor's Answer
by Sandra M Brown, MD, Nov 05, 2009 04:33PM
, Nov 05, 2009 04:33PM
Yes. People who are mildly nearsighted often function well during the day without glasses but notice increased blurring, especially of road signs, at night. This is due to the larger size of the pupil, which causes a nearsighted prescription to become slightly stronger.
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