Intraocular lenses (lOLs) are commonly implanted in cataract surgery. Initially lOLs were mainly monofocal, but at present there are many multifocal lOLs available, which are being implanted. Multifocal lOLs have the potential advantage of reducing the dependence on spectacle correction for near vision after cataract surgery. Because the multifocal lOLs superimpose the near and far images on th...

To the Editor: I commend Munoz et al on their well-designed and well-conducted study on the clinical effect of a combination of multifocal intraocular lenses (MIOL) including the newest rotationally asymmetric MIOL, which appeared in the March 2012 issue of the Journal of Refractive Surgery.1 They found that contrast sensitivity was comparable to that achievable with a monofocal implant and, re...

This article reviews clinical and optical data for three unique lens designs: the ReSTOR diffractive intraocular lens (IOL), the Vision Membrane, and the ReZOOM refractive multifocal IOL.

Jawless fishes (Agnatha; lampreys and hagfishes) most closely resemble the earliest stage in vertebrate evolution and lamprey-like animals already existed in the Lower Cambrian [about 540 million years ago (MYA)]. Agnathans are thought to have separated from the main vertebrate lineage at least 500 MYA. Hagfishes have primitive eyes, but the eyes of adult lampreys are well-developed. The southe...

A new portable lens scanner was developed and tested for measuring focal lengths and relative contrast transfer of monoand multifocal intraocular lenses (IOLs). A photograph of a natural scene was imaged in white light through an IOL in a water-filled cuvette, with their +21D base power largely neutralized by a −20D trial lens, using a USB monochrome video camera that could be focused via a lap...

Supplementary data associated with this article can be 5. Domínguez-Vicent A, Marín-Franch I, Esteve-Taboada JJ, Madri Costa D, Montés-Micó R. Repeatability of in vitro power profi measurements for multifocal contact lenses. Cont Lens Anteri Eye. 2015;38:168--172. 6. Kim E, Bakaraju RC, Ehrmann K. Power profiles of commerci multifocal soft contact lenses. Optom Vis Sci. 2016. Post Auth Correcti...