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Visual Simulation of Retinal Images Through a Decentered Monofocal and a Refractive Multifocal Intraocular Lens

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Abstract

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. Jpn J Ophthalmol 2005;49:281–286 © Japanese Ophthalmological Society 2005

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Authors and Affiliations

  1. Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan

    Kazuno Negishi

  2. Faculty of Engineering, Chiba University, Chiba, Japan

    Kazuhiko Ohnuma

  3. Center for Environmental Remote Sensing, Chiba University, Chiba, Japan

    Takashi Ikeda

  4. Division of Disability and Rehabilitation Research, National Institute of Sensory Organs, Tokyo, Japan

    Toru Noda

Authors
  1. Kazuno Negishi
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  2. Kazuhiko Ohnuma
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  3. Takashi Ikeda
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  4. Toru Noda
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Corresponding author

Correspondence to Kazuno Negishi.

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Negishi, K., Ohnuma, K., Ikeda, T. et al. Visual Simulation of Retinal Images Through a Decentered Monofocal and a Refractive Multifocal Intraocular Lens. Jpn J Ophthalmol 49, 281–286 (2005). https://doi.org/10.1007/s10384-005-0194-z

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  • DOI: https://doi.org/10.1007/s10384-005-0194-z

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