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Abstract #18466 Published in IGR 3-3
Diagnostic accuracy of frequency doubling perimetry
Andrada MT;
Bernaldo De Quiros P;
Villegas RS;
Anton AArchivos de la Sociedad Española de Oftalmologia 2001; 76: 711-718
PURPOSE: To evaluate the capacity of frequency doubling perimetry (FDP) to classify normal subjects and patients with glaucoma. MATERIAL AND METHODS: Type of study: cross-sectional. Fifty-four glaucoma patients (mean age, 65 SD 9.3 years) and 54 normal subjects matched in age (64.2 SD 9.8 years) were examined. Normal subjects had an intraocular pressure (IOP) of 21 mmHg, normal optic disc appearance (disc stereophotos), and normal standard perimetry (Humphrey II, 24-2 full threshold or SITA standard programs). Glaucoma subjects presented IOP <21 mmHg, glaucomatous optic nerves, and glaucomatous standard perimetry. One eye per patient was selected at random. All were examined using FDP C-20-5 and N-30 programs. Sensitivity, specificity, and receiver operating feature curves (ROC) for N-30 parameters were calculated. A quantitative correlation with standard perimetry (Pearson) was also calculated. RESULTS: Sensitivity and specificity for C-20-5 resulted in 74 and 96%, respectively, and 88 and 92%, respectively, for N-30. ROC area for mean deviation was 0.85 and 0.93 for the standard pattern deviation. Standard deviation in the FDP pattern showed a strong linear correlation with the Humphrey 24-2 standard deviation pattern (r2 = 0.76; p < 0.001). CONCLUSIONS: FDP N-30 could classify normal and glaucoma subjects with high sensitivity and specificity. There was strong correlation between FDP and standard perimetry parametersLA: Spanish
Dr M.T. Andrada, Hospital General de Segovia e Instituto Universitario de Oftalmobiologia Aplicada, Universidad de Valladolid, Valladolid, 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)
