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Abstract #13819 Published in IGR 8-2
Depth perception deficits in glaucoma suspects
Gupta N; Krishnadev N; Hamstra SJ; Yucel YBritish Journal of Ophthalmology 2006; 90: 979-981
See also comment(s) by Christopher Bowd •
OBJECTIVE: To investigate depth perception in glaucoma suspects compared to glaucoma patients and controls. METHODS: Glaucoma suspects (n = 16), patients (n = 18), and normal age-matched controls (n = 19) aged 40-65 years were prospectively evaluated for depth perception deficits using the Frisby Test. Stereocuity was measured by stereothreshold in seconds of arc for each group. RESULTS: Glaucoma suspects showed significantly increased mean stereothreshold compared to age-matched normals (144.1 ± 35.2 vs. 26.6 ± 3.7 seconds of arc (± SE); P = 0.0004). The mean stereothreshold in glaucoma patients was also increased compared to age-matched normals (148.1 ± 33.8 vs. 26.6 ± 3.7 seconds of arc (± SE); P = 0.0004). CONCLUSIONS: Glaucoma suspects show depth perception deficits. CLINICAL RELEVANCE: Evidence of impaired stereovision in glaucoma suspects suggests that binocular interactions are disrupted in the absence of visual field defects in standard automated perimetry.
Dr. N. Gupta, University of Toronto / St. Michael's Hospital, Canada
Classification:
6.6.3 Special methods (e.g. color, contrast, SWAP etc.) (Part of: 6 Clinical examination methods > 6.6 Visual field examination and other visual function tests)
