A 34-year-old member asked:
Are there errors, distortions, or disadvantages of using a mirror in a visual acuity test?
1 doctor answer • 2 doctors weighed in
Ophthalmology 24 years experience
No: No, the image is the same as if you were looking the entire 20 feet (or 6 meters). The virtual image produced by the mirror is 20 feet away. Now, if the mirror is very dirty or dusty, maybe.
5.8k viewsReviewed >2 years ago
Last updated Aug 25, 2013
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