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June 1992, Vol 110, No. 6 >

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ARTICLE | June 1992

Evaluation of Methods for Automated Hemifield Analysis in Perimetry

Peter Åsman, MD; Anders Heijl, MD
Arch Ophthalmol. 1992;110(6):820-826. doi:10.1001/archopht.1992.01080180092034.
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• A new aid to perimetric analysis, the Glaucoma Hemifield Test, primarily evaluates up-down differences in automated static visual field tests. We analyzed the visual fields of 163 eyes of 163 normal subjects and 77 eyes of 77 patients with glaucoma diagnosed on bases other than perimetry using the Glaucoma Hemifield Test and a similar, previously developed, hemifield analysis method. The performance of the Glaucoma Hemifield Test was compared with that of the earlier method and the differences in test design were evaluated individually. The Glaucoma Hemifield Test allowed significantly improved separation between the normal group and the group with glaucoma than did the earlier method. This improvement was due to an increase in sensitivity, and was associated with the use of test point significances instead of threshold values, and a large normal database alone in the determination of normal limits.

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