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Abstract #18054 Published in IGR 9-2
Localized retinal nerve fiber layer defects and visual field abnormalities by humphrey matrix frequency doubling technology perimetry
Lee MJ; Kim DM; Jeoung JW; Hwang SS; Kim TW; Park KHAmerican Journal of Ophthalmology 2007; 143: 1056-1058
PURPOSE: To investigate the ability of frequency doubling technology (FDT) perimetry to identify eyes with a localized retinal nerve fiber layer (RNFL) defect and normal Humphrey C30-2 SITA-Standard visual field (HVF). DESIGN: Retrospective case-control study. METHODS: Fifty-four eyes were divided into two groups, an abnormal (n = 29) and a normal (n = 25) FDT perimetry group. Approximation of the RNFL defect to the macula (angle α) and width of the defect (angle β) were measured by RNFL photograph and compared between two groups. RESULTS: Angle α and angle β were significantly different between two groups (P < .001 by Mann-Whitney U test, respectively). A multivariate logistic regression analysis demonstrated that only angle β was significantly associated with FDT perimetry abnormalities (P = .002). CONCLUSIONS: Only 53.7% of the eyes with a localized RNFL defect and normal HVF had visual field abnormalities identified by FDT perimetry. Width of the RNFL defect was more strongly associated with FDT perimetry abnormalities than location of the defect.
Dr. M.J. Lee, Department of Ophthalmology, Seoul National University Hospital, Seoul, Korea
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)
2.13 Retina and retinal nerve fibre layer (Part of: 2 Anatomical structures in glaucoma)
