Intermediate vision and reading speed with array, Tecnis, and ReSTOR intraocular lenses
| Autor: | Bernd Röhrig, Heinz B Eckhardt, Werner W. Hütz, Roman Grolmus |
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| Rok vydání: | 2008 |
| Předmět: |
Male
medicine.medical_specialty Biometry Light Pseudophakia Visual Acuity Cataract Extraction Prosthesis Design law.invention Lens Implantation Intraocular law Ophthalmology medicine Humans Vision Ocular Aged Retrospective Studies Physics Lenses Intraocular Accommodation Ocular Multifocal intraocular lens Lens (optics) Intraocular lenses Reading Surgery Female Bright light |
| Zdroj: | Journal of refractive surgery (Thorofare, N.J. : 1995). 24(3) |
| ISSN: | 1081-597X |
| Popis: | PURPOSETo retrospectively evaluate reading performance at intermediate distances of three types of multifocal intraocular lenses (IOLs) under different light conditions based on reading acuity and reading speed tests. METHODSThirty cataract patients (60 eyes) randomly assigned to receive the Array SA40N lens (n=20 eyes), the Tecnis ZM001 lens (n=20 eyes), and the ReSTOR lens (n=20 eyes) were retrospectively tested for their reading abilities at distances of 40 cm, 60 cm, and 80 cm under low light conditions (6 cd/m2) and bright light conditions (100 cd/m2). RESULTSLogMAR distance-corrected acuity in dim (bright) light at 40 cm was 0.456 (0.363) (Array), 0.446 (0.293) (ReSTOR), and 0.299 (0.140) (Tecnis); at 60 cm, it was 0.417 (0.259) (Array), 0.448 (0.318) (ReSTOR), and 0.381 (0.121) (Tecnis); at 80 cm, it was 0.359 (0.195) (Array), 0.395 (0.245) (ReSTOR), and 0.373 (0.124) (Tecnis). Uncorrected reading speed (words/min) in dim (bright) light at 40 cm was 25 (69) (Array), 58 (138) (ReSTOR), and 110 (166) (Tecnis); at 60 cm, it was 65 (129) (Array), 58 (129) (ReSTOR), and 135 (173) (Tecnis); and at 80 cm, it was 59 (153) (Array), 79 (164) (ReSTOR), and 121 (176 (Tecnis). CONCLUSIONSOur study indicates that Array, ReSTOR, and Tecnis IOLs provide functional intermediate vision in bright light. In dim light, however, the Tecnis IOL provides better uncorrected reading speed at intermediate distances than Array and ReSTOR IOLs. [J Refract Surg. 2008;24:251-256.] ABOUT THE AUTHORS From Augenklinik Bad Hersfeld (Hütz, Eckhardt, Grolmus), Hersfeld, and Friedrich Schiller Universität (Röhrig), Jena, Germany. The authors have no financial interest in the materials presented herein. Correspondence: Werner W. Hütz, MD, Klinikum Bad Hersfeld GmbH, Klinik für Augenheilkunde, Seilerweg 29, D-36251 Bad Hersfeld, Germany. Tel: 49 6621 881468; E-mail: w.w.huetz@t-online.de Received: June 8, 2007 Accepted: January 30, 2008 |
| Databáze: | OpenAIRE |
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