Astigmatism is a type of refractive error. It is not an eye health problem but is a problem with how the eye focuses light beams that enter the eye.
 
In an eye with astigmatism, light fails to come to a single focus on the retina to produce clear vision. Instead, multiple focus points occur, either in front of or behind the retina.
 
Astigmatism is characterised by an irregular curvature of the cornea. Astigmatism occurs to some degree in most people but usually doesn’t require treatment.
 
Find out more about symptoms of astigmatism

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