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Abstract #19026 Published in IGR 3-1
A pilot study on rapid glaucoma screening
Xu L; Yang H; Zhao Xet al.Chinese Journal of Ophthalmology 2001; 37: 16
OBJECTIVE: To screen glaucoma effectively and rapidly and to evaluate the specificity and sensitivity of the method. METHODS: Seven hundred and thirty-four subjects were screen in four weekend days. All subjects underwent intraocular pressure (IOP) examination with the Tonopen, anterior chamber depth measurement with the Van Herick method, fundus photography without pupil dilatation, and suprathreshold perimetry with the Frequency Doubling Perimeter (FDP), Octopus and Humphery automatic perimeter. The cases with positive results after the above examinations should undergo threshold perimetry and fundus stereo photography for evaluation of the retinal nerve fiber layer (RNFL). RESULTS: Of the 734 subjects with complete data, there were 55 cases with open-angle glaucoma (7.5%), 59 with angle-closure glaucoma (8.4%), and 98 glaucoma suspects (13.4%). The IOP of 34 patients was > 21 mmHg (29.8% of all glaucomatous patients). The abnormal rates of optic nerve and visual field were 94.5% and 67.3%, respectively, in patients with open-angle glaucoma. The abnormal rates of anterior chamber, visual field, and optic nerve were 89.8%, 72.9%, and 45.8%, respectively. CONCLUSIONS: The most efficient method for screening open-angle glaucoma is fundus stereo photography when evaluated by an expert. Anterior chamber evaluation is necessary in the screening of glaucoma. Suprathreshold perimetry has limited specificity, and FDP could be a promising method for screening glaucoma with relatively good specificity. LA: Chinese
Dr L. Xu, Beijing Institute of Ophthalmology, Beijing Tong Ren Hospital, Capital University of Medical Sciences, Beijing 100005, China
