Binocular function after bilateral implantation of monofocal and refractive multifocal intraocular lenses |
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| Authors: | Arens B Freudenthaler N Quentin C D |
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| Affiliation: | 1. AugenklinikGöttingen, Germany;2. Klinische Neurophysiologie der Georg-August-Universität, Göttingen, Germany;2. Faculty of Medicine, University of Ottawa, Ottawa, Ont.;1. Center of Biostatistics and Bioinformatics, University of Mississippi Medical Center, Jackson, Mississippi;2. Department of Ophthalmology, University of Mississippi Medical Center, Jackson, Mississippi;3. Department of Medicine, University of Mississippi Medical Center, Jackson, Mississippi;4. Department of Physiology and Biophysics, University of Mississippi, Jackson, Mississippi;5. Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, Massachusetts |
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| Abstract: | PURPOSE: To evaluate binocular function after bilateral implantation of a refractive multifocal intraocular lens (IOL). METHODS: Contrast sensitivity, glare, depth discrimination, and distance and near visual acuity were examined in 21 patients with a multifocal IOL and 15 patients with a monofocal IOL. RESULTS: There was no significant difference in binocular distance visual acuity between the 2 groups. In near visual acuity with distance correction, the multifocal group had a significant advantage in monocular and binocular vision (P < .05). High contrast with Regan contrast letter acuity charts did not differ significantly between the groups. However, at a contrast of 11%, sensitivity was significantly lower monocularly in the multifocal group. Contrast sensitivity in this group was not significantly lower binocularly. The brightness acuity tester revealed no between-group difference in glare. With the Titmus stereotest, depth discrimination was significantly better with the multifocal IOL with distance correction. CONCLUSION: Bilateral implantation of a refractive multifocal IOL provided good binocular function and alleviated the well-known disadvantage of reduced contrast sensitivity at low contrast levels. |
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