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Abstract #17495 Published in IGR 9-2
Ocular pulse amplitude: A new biometrical parameter for the diagnose of glaucoma?
Romppainen T; Kniestedt C; Bachmann LM; Sturmer JOphthalmologe 2007; 104: 230-235
Dynamic contour tonometry (DCT) enables accurate transcorneal measurements of the intraocular pressure and ocular pulse amplitude (OPA). In this study, we investigated whether this new biometrical parameter can characterize different glaucoma types and serve as a helpful tool in the diagnosis and therapy of the disease. A total of 441 eyes of 222 patients were included. Pressure measurements were performed with contour and applanation tonometry. Mean OPA was 3.1 ± 1.4 mmHg. Eyes with ocular hypertension showed significantly higher OPA values (3.6 ± 1.3 mmHg) than healthy eyes (3.1 ± 1.4 mmHg) and eyes with low-tension glaucoma (2.9± 1.4 mmHg). After trabeculectomy, the values were significantly lower (2.4 ± 1.3 mmHg) than in healthy eyes. The size of the OPA seems to be characteristic for different types of glaucoma and directly dependent on intraocular pressure levels. Further investigation is indicated to clarify its diagnostic usefulness. LA: German
Dr. T. Romppainen, Augenklinik, Universitätsspital Zurich, Frauenklinikstrasse 24, 8091 Zürich, Switzerland. timosamuel.romppainen@usz.ch
Classification:
6.1.1 Devices, techniques (Part of: 6 Clinical examination methods > 6.1 Intraocular pressure measurement; factors affecting IOP)
6.11 Bloodflow measurements (Part of: 6 Clinical examination methods)
