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Abstract #8227 Published in IGR 4-3
Comparison of clinical optic disc assessment with tests of early visual field loss
Landers JA; Goldberg I; Graham SLClinical and Experimental Ophthalmology 2002; 30: 338-342
PURPOSE: Clinical optic disc assessment may identify glaucomatous optic neuropathy prior to a patient developing visual field abnormalities on achromatic automated perimetry (AAP). Tests targeting axons that are selectively damaged or whose redundancy is low, such as short wavelength automated perimetry (SWAP) and frequency doubling perimetry (FDP), may detect visual field loss before it is seen on AAP. This study investigated whether patients in whom characteristic glaucomatous optic disc damage was present without AAP abnormalities had visual field abnormalities with SWAP and FDP. METHODS: A sample of patients (n = 50) with ocular hypertension (normal AAP) were selected, who had SWAP, FDP, and stPV) were 33, 92, 57, and 81%, respectively, for SWAP, and 25, 89, 49, and 79%, respectively, for FDP. CONCLUSION: In glaucoma suspects, the study suggests that SWAP and FDP identify subjects with early glaucomatous optic neuropathy missed by AAP.
J.A. Landers, MD, Park House, Floor 4, Suite 2, 187 Macquarie Street, Sydney, NSW 2000, Australia. landers@lisp.com.au
Classification:
2.14 Optic disc (Part of: 2 Anatomical structures in glaucoma)
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)
6.8.2 Posterior segment (Part of: 6 Clinical examination methods > 6.8 Photography)
