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Article
December 1987

Ocular Biometry

Author Affiliations

Los Angeles

Arch Ophthalmol. 1987;105(12):1626-1627. doi:10.1001/archopht.1987.01060120024006
Abstract

To the Editor.  —The article by Singh et al1 in the August 1987 issue of the Archives raised many interesting and controversial points regarding intraocular lens power calculations. The situation may be even more complex, however, than the authors suggested.First of all, not all refractive errors are created equal. Contrast a patient who postoperatively has, say, 2.5 diopters (D) of myopia with another who has 2.5 D of hyperopia. For distance vision, both have 2.5 D of blurring, so to speak. However, without glasses, the myope will be able to read or find his bedside telephone or bottle of medicine. The 2.5-D hyperope, on the other hand, will have even more blurred near vision than distant vision. In this sense, 3 D of postoperative myopia may well be preferable to 1 D of hyperopia.Cataract surgery is increasingly successful with an increasingly more satisfactory postoperative rehabilitation. As a

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