A member asked:

In what way can eye doctors tell what your prescription is when they look in your dilated eyes?

A doctor has provided 1 answer

Retinocsopy, : First of all the prescription of your eyes is determined before dilation by doing a refraction. The test where you tell the doctor which lens is best one or two. There is a way to tell what your prescription is with your eyes dilated, called retinas opt. This is how glasses can be prescribed to pre verbal children.

Answered 2/2/2014

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