The Use of Cross-Polarizing Filters for Threshold Central Visual Field Testing

Alfredo A. Sadun; Michael Wall; Mark Borchert; Betty Johnson

doi:10.1364/NAVS.1986.WD4

Topical Meeting on Noninvasive Assessment of the Visual System
Technical Digest Series (Optica Publishing Group, 1986),
paper WD4
•https://doi.org/10.1364/NAVS.1986.WD4

The Use of Cross-Polarizing Filters for Threshold Central Visual Field Testing

Alfredo A. Sadun, Michael Wall, Mark Borchert, and Betty Johnson

Noninvasive Assessment of the Visual System 1986

Monterey, California United States
24–26 March 1986
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A. A. Sadun, M. Wall, M. Borchert, and B. Johnson, "The Use of Cross-Polarizing Filters for Threshold Central Visual Field Testing," in Topical Meeting on Noninvasive Assessment of the Visual System, Technical Digest Series (Optica Publishing Group, 1986), paper WD4.

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Abstract

Amsler grid testing is commonly used for evaluating the central ten degrees of visual field (1). This test is particularly important for monitoring patients with senile macular degeneration for the earliest possible sign of neovascular growth. Patients viewing this grid may report abnormalities representing metamorphopsia, scotomas, and depressions of the central field.

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