February 1989
Volume 30, Issue 2
Free
Articles  |   February 1989
Optic disc cupping: prevalence findings from the WESDR.
Author Affiliations
  • B E Klein
    Department of Ophthalmology, University of Wisconsin Medical School, Madison 53792.
  • S E Moss
    Department of Ophthalmology, University of Wisconsin Medical School, Madison 53792.
  • Y L Magli
    Department of Ophthalmology, University of Wisconsin Medical School, Madison 53792.
  • R Klein
    Department of Ophthalmology, University of Wisconsin Medical School, Madison 53792.
  • C Hoyer
    Department of Ophthalmology, University of Wisconsin Medical School, Madison 53792.
  • J Johnson
    Department of Ophthalmology, University of Wisconsin Medical School, Madison 53792.
Investigative Ophthalmology & Visual Science February 1989, Vol.30, 304-309. doi:
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    • Get Citation

      B E Klein, S E Moss, Y L Magli, R Klein, C Hoyer, J Johnson; Optic disc cupping: prevalence findings from the WESDR.. Invest. Ophthalmol. Vis. Sci. 1989;30(2):304-309.

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

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Abstract

Increased cupping of the optic disc is considered to be an indication of pressure-related damage of the optic nerve. This paper explores the relationship of intraocular pressure and cupping in persons with diabetes mellitus, a group of people whose optic nerves may be more susceptible to the effects of intraocular pressure. Stereoscopic fundus photographs of the seven standard fields were obtained in all persons participating in the Wisconsin Epidemiologic Study of Diabetic Retinopathy at the time of the initial prevalence survey. Measurements of disc and cup diameters in the vertical and horizontal meridia were made by two trained graders. Cup-to-disc ratios were computed for both diameters of each eye and the mean of the two gradings was used. A history of glaucoma was significantly associated with larger cup-to-disc ratios at the prevalence examination. Cup-to-disc ratios were not larger in those with high IOP, nor in those who had panretinal photocoagulation.

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