How do doctors test for astigmatism?

M

Miles S

New member
I I have a little astigmatism in my right eye but I want to know how they know it's astigmatism and not just myopia. Is there like a chart or do they literally observe your cornea and determine your axis and power from that?
 
They do observe, but there is a machine that measures the roundness of your eye too. If you looked into a machine with a place to set your chin, and binoculars to look through with lights at the end, then they measured your cornea. They usually do this right before the standard eye exam.
 
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