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Diagnosis of Astigmatism

Diagnosis of Astigmatism

Astigmatism is diagnosed with a routine eye examination.

In an eye with a refractive error, the light rays do not bend properly to achieve a single focus point on the retina. Instead, light rays either focus in front of the retina, or do not focus at a single point.

A process called refraction is used to measure the refractive error of the eye.

A visual acuity test is performed to determine the focusing power of the eye at different distances.


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