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Abstract #11343 Published in IGR 6-3
Combined spatial, contrast, and temporal functions perimetry in mild glaucoma and ocular hypertension
González-Hernández M; García-Feijoó J; Sanchez Mendez M; González de la Rosa MEuropean Journal of Ophthalmology 2004; 14: 514 - 522
PURPOSE: To evaluate the diagnostic ability of a new perimetric procedure in glaucoma. METHODS: Pulsar perimeter shows white circular sinusoidal grating patterns with decreasing amplitude, 5° in diameter, 500 msec in duration in 66 locations. The stimuli scale combines spatial resolution and contrast. The stimuli were shown with centrifugal wave motion at 8 cyl/deg (K6W) or pulse at 30 Hz (T30W). Fifty-six normal eyes and 82 eyes with ocular hypertension and mild glaucoma were included. These 82 cases were classified into four levels of diagnostic certainty, from 0 (ocular hypertension) to 3 (mild glaucoma). RESULTS: Mean examination time was 3:49 min. Specificity was 96.4% (T30W) and 94.6% (K6W). Sensitivities for levels 0 and 3 were 34.5% to 100% (T30W) and 24.1% to 75% (K6W). The receiver operating characteristic (ROC) curve areas for T30W at levels 1, 2, and 3 were 0.88, 0.94, and 0.99. The ROC areas for K6W were 0.83, 0.91, and 0.97. There was good correlation between both Pulsar perimetries (r = 0.88), but it was lower with conventional perimetry (r = 0.58 for T30W and r = 0.59 for K6W). CONCLUSIONS: The novel Pulsar T30W perimetry may be helpful for the study of mild glaucoma and ocular hypertension.
Dr. M. González-Hernández, Department of Physiology, University of La Laguna, Spain
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)