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Abstract #10382 Published in IGR 6-1

Relationship between indices of Humphrey perimetry and frequency doubling technology perimetry in glaucoma

Fukushima A; Shirakashi M; Yaoeda K; Funaki S; Funaki H; Ofuchi N; Abe H
Journal of Glaucoma 2004; 13: 114-119


PURPOSE: To study whether the correlation between indices of Humphrey perimetry and frequency doubling technology (FDT) perimetry differs in the early and later stages of glaucoma. METHODS: This study included 200 eyes of 200 patients with primary open-angle glaucoma or normal-tension glaucoma. The eyes were classified into the early and later stages by the median value (-4.51 dB) (Classification 1; n = 100 and 100, respectively) or the average value of the maximum and minimum values (-11.90 dB) (Classification 2; n = 165 and 35, respectively) of mean deviation (MD) obtained from a set of measurements with the Humphrey full-threshold 30-2 program in all eyes. The correlation between MD (H-MD) or pattern standard deviation (PSD) (H-PSD), as obtained from another set of measurements with the Humphrey full-threshold 30-2 program, and MD (F-MD) or PSD (F-PSD), as calculated by the full-threshold N-30 program of FDT perimetry, were evaluated using linear regression analysis. RESULTS: Overall, H-MD and H-PSD significantly correlated with F-MD (r = 0.713; p < 0.001) and F-PSD (r = 0.731; p < 0.001), respectively. In both Classifications 1 and 2, H-MD and H-PSD significantly correlated with F-MD and F-PSD, respectively, both in the early and later stages. However, in both classifications, the correlation between H-MD and F-MD differed significantly between the two stages (Classification 1; p < 0.001; Classification 2, p = 0.003), while the correlation between H-PSD and F-PSD did not differ significantly between the two stages. CONCLUSIONS: The degree of correlation between H-MD and F-MD differed between the early and later stages of glaucoma.

Dr. A. Fukushima, Department of Ophthalmology, Niigata University Faculty of Medicine, Niigata City, Niigata, Japan. arasan@med.niigata-u.ac.jp


Classification:

6.6.2 Automated (Part of: 6 Clinical examination methods > 6.6 Visual field examination and other visual function tests)
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)



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