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Arch Ophthalmol. 1993 May;111(5):645-50.

Blue-on-yellow perimetry can predict the development of glaucomatous visual field loss.

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  • 1Department of Ophthalmology, University of California, Davis, Sacramento 95816.

Abstract

OBJECTIVE:

The purpose of this investigation was to determine whether blue-on-yellow (B/Y) perimetry is capable of predicting the onset and location of impending glaucomatous visual field loss in patients with ocular hypertension.

DESIGN:

A Humphrey Field Analyzer (Humphrey Instruments, San Leandro, Calif) was modified to perform B/Y perimetry to isolate and measure the sensitivity of short-wavelength-sensitive mechanisms. Participants were tested annually with standard white-on-white (W/W) and B/Y automated perimetry for a period of 5 years.

PATIENTS:

The study population consisted of 38 patients with ocular hypertension and 62 age-matched normal control subjects.

RESULTS:

Initially, all 76 ocular hypertensive eyes had normal W/W automated perimetry results, with 67 eyes having normal and nine eyes having abnormal B/Y test results. Five years later, five of the nine ocular hypertensive eyes with initial B/Y abnormal results developed glaucomatous visual field loss measured by standard W/W automated perimetry, while none of the 67 ocular hypertensive eyes with initially normal B/Y results developed abnormal W/W perimetry results.

CONCLUSIONS:

Blue-on-yellow perimetry deficits are an early indicator of glaucomatous damage and are predictive of impending glaucomatous visual field loss for standard W/W automated perimetry. To our knowledge, this is the first prospective, long-term longitudinal study that demonstrates the ability to predict the onset of glaucomatous visual field loss in patients with ocular hypertension on the basis of psychophysical testing.

PMID:
8489447
[PubMed - indexed for MEDLINE]
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