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Astigmatism

Clip Number: 4 of 9
Presentation: Common Eye Conditions, Tests, and Procedures
The following reviewers and/or references were utilized in the creation of this video:
Reviewed By: Arthur Schoenstadt, MD
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If the cornea has an uneven shape to it, then some light rays will be bent more than other light rays. This is called astigmatism. These corneas are shaped more like a football or a barrel. This may lead to some light being focused in front of the retina and/or some light behind. Depending on the amount of astigmatism, this person might need corrective lenses to see clearly at a distance and/or up close.
 

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