Effect of astigmatism on visual acuity in eyes with a diffractive multifocal intraocular lens

Journal of Cataract and Refractive Surgery
Ken HayashiHideyuki Hayashi

Abstract

To examine the effect of astigmatism on visual acuity at various distances in eyes with a diffractive multifocal intraocular lens (IOL). Hayashi Eye Hospital, Fukuoka, Japan. In this study, eyes had implantation of a diffractive multifocal IOL with a +3.00 diopter (D) addition (add) (AcrySof ReSTOR SN6AD1), a diffractive multifocal IOL with a +4.00 D add (AcrySof ReSTOR SN6AD3), or a monofocal IOL (AcrySof SN60WF). Astigmatism was simulated by adding cylindrical lenses of various diopters (0.00, 0.50, 1.00, 1.50, 2.00), after which distance-corrected acuity was measured at various distances. At most distances, the mean visual acuity in the multifocal IOL groups decreased in proportion to the added astigmatism. With astigmatism of 0.00 D and 0.50 D, distance-corrected near visual acuity (DCNVA) in the +4.00 D group and distance-corrected intermediate visual acuity (DCIVA) and DCNVA in the +3.00 D group were significantly better than in the monofocal group; the corrected distance visual acuity (CDVA) was similar. The DCNVA with astigmatism of 1.00 D was better in 2 multifocal groups; however, with astigmatism of 1.50 D and 2.00 D, the CDVA and DCIVA at 0.5m in the multifocal groups were significantly worse than in the monofocal g...Continue Reading

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Citations

May 25, 2013·The British Journal of Ophthalmology·Maria CasagrandeThomas Kohnen
Jan 28, 2014·Journal of Cataract and Refractive Surgery·Rosa Braga-MeleUNKNOWN ASCRS Cataract Clinical Committee
Jan 23, 2016·Journal of Cataract and Refractive Surgery·Peter MojzisJorge L Alio
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Feb 22, 2011·Journal of Cataract and Refractive Surgery·Paul Ernest, Richard Potvin
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Jul 2, 2014·Journal of Refractive Surgery·Armando S CremaMarcony R Santhiago
Sep 1, 2011·Journal of Refractive Surgery·Marcony R SanthiagoNewton Kara-Junior
Mar 31, 2016·Journal of Cataract and Refractive Surgery·Alexander C Day, Julian D Stevens
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May 18, 2013·Journal of Cataract and Refractive Surgery·Tiago B FerreiraRobert Montés-Micó
Feb 11, 2015·Journal of Cataract and Refractive Surgery·Jay S PeposeGregg Feinerman
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Oct 8, 2019·Journal of Cataract and Refractive Surgery·Laureano A Rementería-CapeloJavier Ruiz-Alcocer
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