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astigmatic |
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astigmatic [as′tigmat′ik] Etymology: Gk, a, stigma, without point pertaining to astigmatism, or an error of refraction in which a ray of light is not sharply focused on the retinal tissue but is spread over a more diffuse area. Astigmatism is due to differences in curvature in the various meridians of the cornea and lens of the eye. astigmatic Pertaining to astigmatism. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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