What tool is used to measure visual acuity?
A) Snellen eye chart
B) ophthalmoscope
C) astigmatism test chart
D) none of the above
A
Explanation:
B) An ophthalmoscope is used to look at the retina.
C) An astigmatism test chart is used to diagnose an irregularly shaped cornea.
D) One of the above answers is correct.
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