Vision Res. 1991;31(7-8):1361-7.

Dependence of intraocular straylight on pigmentation and light transmission through the ocular wall.

van den Berg TJ, IJspeert JK, de Waard PW.

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The Netherlands Ophthalmic Research Institute, Amsterdam.

Abstract

The straylight function of the human eye depends on eye color, especially at larger angles of scattering. As a potential cause for this dependence, transmission of light through the ocular wall was measured, using a psychophysical method. For a light-blue eye effective transmission of the iris was 1% for red and 0.2% for green light. Also the eyewall around the iris transmits a significant amount of light. For the dark-brown eyes of pigmented individuals transmission is lower by two orders of magnitude. Although important, transmission proved to be only partly responsible for the pigmentation dependence, the other cause probably being reflection from the fundus.

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Dependence of intraocular straylight on pigmentation and light transmission through the ocular wall.

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