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What is the difference between regular, irregular astigmatism?

2 doctors weighed in
Dr. Joseph Barakeh
Ophthalmology
1 doctor agrees

In brief: Correctability

Regular astigmatism is a refractive error produced when your eye generates an image as if the light rays passed through a regular shaped glass football.
Irregular astigmatism is when the football is not shaped regularly, e.g. One end is fatter than the other. It is very difficult to fully correct vision by any technique in cases of irregular astigmatism; contacts are useful.

In brief: Correctability

Regular astigmatism is a refractive error produced when your eye generates an image as if the light rays passed through a regular shaped glass football.
Irregular astigmatism is when the football is not shaped regularly, e.g. One end is fatter than the other. It is very difficult to fully correct vision by any technique in cases of irregular astigmatism; contacts are useful.
Dr. Joseph Barakeh
Dr. Joseph Barakeh
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