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著者: Kazuno Negishi, Kazuhiko Ohnuma, Takashi Ikeda, Toru Noda
雑誌名: Jpn J Ophthalmol. 2005 Jul-Aug;49(4):281-6. doi: 10.1007/s10384-005-0194-z.
Abstract/Text
PURPOSE: To evaluate the effect of decentration of a monofocal intraocular lens (IOL) and a refractive multifocal IOL on retinal image quality using a new visual simulation system.
METHODS: Using a new visual simulation system, we performed visual simulation of a monofocal and a multifocal IOL at 5, 4, 3, 2, 1, and 0.4 m with several decentered IOL positions from 0 to 1.0 mm through a 3- or 4-mm aperture using Landolt visual acuity (VA) charts. The VA was estimated under each condition from the simulated retinal image.
RESULTS: With a monofocal IOL, the image was affected minimally by decentration at 4 and 5 m; at 2 and 3 m, the image contrast decreased slightly with increased decentration. With the multifocal IOL, some loss of image contrast developed at all distances compared with the monofocal IOL; however, the images of the Landolt's rings were still recognizable under all conditions.
CONCLUSIONS: Our results suggest that up to 1.0 mm of decentration of a monofocal and multifocal IOL would not greatly affect the retinal image quality.
(c) Japanese Ophthalmological Society 2005.
PMID 16075326 Jpn J Ophthalmol. 2005 Jul-Aug;49(4):281-6. doi: 10.1007/s10384-005-0194-z.
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