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Functional quantification of diaphany

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Abstract

Intraocular straylight can be measured, in clinical as well as normal cases, by the direct compensation technique. Intraocular straylight is known to originate from the cornea, lens and fundus. We have studied a fourth source: the translucency of the iris and surrounding ocular wall. For lightly-pigmented normal eyes this source proved to be important. In the present paper results are reported from a patient with X-linked megalocornea. He had diaphany of the iris, as is common in these patients, and photophobic complaints. Quantitative measurements showed that the translucency was much increased so that the intraocular straylight was far above the normal level.

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Authors and Affiliations

  1. Laboratory of Medical Physics and Informatics & The Netherlands Ophthalmic Research Institute, Academic Medical Center, Amsterdam, The Netherlands

    T. J. T. P. Van Den Berg PhD, J. K. Ijspeert & P. W. T. De Waard

  2. Dept. of Ophthalmology, University of Ghent, Ghent, Belgium

    F. Meire

Authors
  1. T. J. T. P. Van Den Berg PhD
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  2. J. K. Ijspeert
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  3. P. W. T. De Waard
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  4. F. Meire
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Van Den Berg, T.J.T.P., Ijspeert, J.K., De Waard, P.W.T. et al. Functional quantification of diaphany. Doc Ophthalmol 75, 239–246 (1990). https://doi.org/10.1007/BF00164837

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  • DOI: https://doi.org/10.1007/BF00164837

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