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allometropia |
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allometropia Refraction of the eye along any line except the visual axis (or line of sight) therefore representing the refraction of any extrafoveal region. Example: if an eye is emmetropic along the visual axis, at 40 degrees of temporal retinal eccentricity the allometropia will be about plano −2.50 ✕ 90º and at 50 degrees, +0.50−3.50 ✕ 90º. See oblique 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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