What is the difference between keratoconus and "common" astigmatism? View Question: www.getmdesign.com
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Astigmatism is a common condition where the curvature of one or more of the optical surfacesof the eye (the cornea and lens surfaces) are more "round" in one direction than the other. In"regular" astigmatism the maximum and minimum powers are aligned at 90 degrees to eachother while in "irregular" astigmatism they do not align. An egg is a good example of a surfacewith "regular astigmatism". Kerat...
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