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Abstract #6752 Published in IGR 4-1
Effect of tonometry on a glaucoma population study
Katsushima H; Sone A; Takeda A; Okazaki H; Adachi J; Funahashi K; Maruyama INippon Ganka Gakkai Zasshi 2002; 106: 143-148
PURPOSE: The purpose of this study was to evaluate the influence of tonometry in detecting the occurrence of glaucoma. METHODS: The subjects, 845 of 3488 residents aged 40 years or older, were examined according to standard protocols, including tonometry, slit-lamp examination, fundus photography, and automatic perimetry as a recall examination. The intraocular pressure (IOP) of each subject was measured by both Goldmann applanation tonometer (GAT) and noncontact tonometer CT-70 (NCT). RESULTS: The mean ± standard deviation IOP measured by GAT was 15.52 ± 2.57 mmHg, and 15.03 ± 2.90 mmHg by NCT. There was a statistically significant correlation (p < 0.0001). The difference between pairs of measurements by GAT and NCT was 0.50 ± 1.93 mmHg. Tonometry had no influence in detecting the incidence of glaucoma, which was 4.14%; primary open-angle glaucoma 0.59%, normal tension glaucoma 2.6%, primary angle-closure glaucoma 0.47%, and other types of glaucoma 0.48%. The detection of ocular hypertension was different, and was 2.13% with GAT and 2.72% with NCT. CONCLUSIONS: In this study, the influence of tonometry in detecting the incidence of glaucoma was very small. A noncontact tonometer is considered to be useful in glaucoma population studies.LA: Japanese
Dr. H. Katsuchima, Katsushima Eye Clinic, 3-1 Odori, Nishi 14, Chuo-ku, Sapporo 060-0042, Japan
Classification:
1.6 Prevention and screening (Part of: 1 General aspects)