Journal article
Threshold Amsler Grid Testing in Maculopathies
Ophthalmology, Vol.94(9), pp.1126-1133
09/1987
DOI: 10.1016/S0161-6420(87)33315-9
PMID: 3684230
Abstract
The Amsler grid is a suprathreshold target and thus may fail to detect relative scotomas. If the grid is viewed through two cross-polarizing filters creating low luminance conditions (threshold Amsler grid testing) the test is far more sensitive. Ten patients with disorders of the macula with normal standard white Amsler grid testing were studied with three other Amsler grid tests. Of the 15 involved eyes, 12 had visual field defects present with threshold Amsler grid testing. Tangent screen examination showed defects in 10 of these 12 eyes. The two red grids used were not as sensitive as the threshold grid. Three eyes had metamorphopsia with the white grid which became the site of a visual field defect with threshold testing. Threshold Amsler grid testing is a rapid and sensitive technique for the evaluation of the central 10° of visual field in patients with maculopathies.
Details
- Title: Subtitle
- Threshold Amsler Grid Testing in Maculopathies
- Creators
- Michael Wall - The Departments of Ophthalmology, Tulane University School of Medicine, New OrleansDonald R May - The Departments of Ophthalmology, Tulane University School of Medicine, New Orleans
- Resource Type
- Journal article
- Publication Details
- Ophthalmology, Vol.94(9), pp.1126-1133
- Publisher
- Elsevier Inc
- DOI
- 10.1016/S0161-6420(87)33315-9
- PMID
- 3684230
- ISSN
- 0161-6420
- eISSN
- 1549-4713
- Language
- English
- Date published
- 09/1987
- Academic Unit
- Neurology; Ophthalmology and Visual Sciences
- Record Identifier
- 9983980088702771
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