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A member asked:

If our pupils did get very small, would this limit our visual field?

A doctor has provided 1 answer

Minor issue: The pupils would have to get smaller than about 1.5 mm which is very rare. At that size or less, there would be diffractive changes which might cause some disturbance in the field of vision. But the usual smallest pupil is about 2 mm and this would not change the field.

Answered 1/11/2015

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