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dioptre |
Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson | 0.07 sec. |
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dioptre (US), diopter a unit for measuring the refractive power of a lens: the reciprocal of the focal length of the lens expressed in metres 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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The implants are scleral constrictor bands, segments or ribs for inducing accommodation of a few diopters, to correct refractive errors. The lens can treat nearsightedness between the ranges of -4 to -20 diopters with up to 3 diopters of astigmatism. The Food and Drug Administration warned that the implants are only for mildly nearsighted people, whose vision is formally diagnosed as ``minus 1 diopters to minus 3 diopters. |
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