title: Accuracy of lens power calculations with the biconvex and meniscus intraocular lenses.
abstract: In a prospective study, intraocular lens power calculations were within +/- 0.50 diopter of the final refraction in 77 of 88 eyes (87.5%) with a biconvex lens and in 41 of 90 eyes (45.5%) with a meniscus lens. The more precise power calculations with the biconvex intraocular lens seemed to be related to the superior optical design of the lens, with its close configuration to a normal crystalline lens.
authors.affiliation: Department of Ophthalmology, University of Southern California, Los Angeles.
authors.forename: H J
authors.initials: HJ
authors.lastname: Shammas
mesh_terms: D002387:Cataract Extraction; D004867:Equipment Design; D006801:Humans; D007910:Lenses, Intraocular; D008433:Mathematics; D055095:Optics and Photonics / Q000379:methods*; D011184:Postoperative Period; D012029:Refraction, Ocular