December 2002
Volume 43, Issue 13
Free
ARVO Annual Meeting Abstract  |   December 2002
The Effect of Scattering and Higher-order Aberrations on Contrast Sensitivity in Eyes With Cataract
Author Affiliations & Notes
  • T Kuroda
    Department of Ophthalmology Osaka University Med School Suita Japan
  • T Fujikado
    Department of Ophthalmology Osaka University Med School Suita Japan
  • N Maeda
    Department of Ophthalmology Osaka University Med School Suita Japan
  • S Ninomiya
    Department of Ophthalmology Osaka University Med School Suita Japan
  • Y Tano
    Department of Ophthalmology Osaka University Med School Suita Japan
  • Y Hirohara
    Topcon Corporation Tokyo Japan
  • T Mihashi
    Topcon Corporation Tokyo Japan
  • Footnotes
    Commercial Relationships   T. Kuroda, None; T. Fujikado, None; N. Maeda, None; S. Ninomiya, None; Y. Tano, None; Y. Hirohara, Topcon Corporation E; T. Mihashi, Topcon Corporation E. Grant Identification: Support:Japanese Ministry of Education(11671737) and Osaka Eye Bank
Investigative Ophthalmology & Visual Science December 2002, Vol.43, 2033. doi:
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    • Get Citation

      T Kuroda, T Fujikado, N Maeda, S Ninomiya, Y Tano, Y Hirohara, T Mihashi; The Effect of Scattering and Higher-order Aberrations on Contrast Sensitivity in Eyes With Cataract . Invest. Ophthalmol. Vis. Sci. 2002;43(13):2033.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Abstract: : Purpose: Visual quality is affected by light scattering or wavefront aberrations in eyes with cataract. The purpose of this study is to estimate the effect of scattering and higher-order aberrations on contrast sensitivity in eyes with cataract. Methods: Hartmann-Shack sensor (Wavefront analyzer, Topcon, Tokyo, Japan) has been used to measure 27 eyes of 24 cataract patients without any retinal abnormalities and 12 eyes of 12 normal subjects. Ocular-higher-order wavefront aberrations (OWA) and scatter index (SI) for central 4mm diameter were measured. Higher-order aberrations were calculated with Zernike polynomials up to 4th order. The amount of the scattering was estimated by using the width of the point spread functions (PSFs) in the Hartmann image. The width was compensated by the aberrations. The area under the log contrast sensitivity function (AULCSF) was measured by CSV-1000 (Vector vision). Multiple linear regression analysis was performed to investigate the effect of OWA and SI on AULCSF. Results: AULCSF was approximated by using SI and OWA; AULCSF=7.089-0.03305x SI - 4.671x OWA (Multiple Linear Regression, P=0.001). Conclusion: Using Hartmann-Shack sensor, the amount of contrast sensitivity in eyes with cataract can be estimated from the scattering index and the wavefront aberrations.

Keywords: 620 visual acuity • 338 cataract • 599 topography 
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