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Ophthalmology in China ; (6)1994.
Article in Chinese | WPRIM | ID: wpr-558418

ABSTRACT

Objective To evaluate the value of the Heidelberg retina tomograph - Ⅱ in detection of primary chronic angle-closure glaucoma(CACG) in a Chinese population, and to investigate the difference of parameters detected by HRT-Ⅱ between normal subjects and CACG patients. To evaluate the sensitivity and specificity of optic disk detection using Moorfields regression analysis (MRA) and linear discriminant function(LDF) of the HRT-Ⅱ in differentiating normal from CACG eyes. Design Prospective, comparative case series. Participants 64 eyes of 32 normal subjects and 77 eyes of 51 patients with CACG were studied. The normal subjects were ageand refraction-matched with the glaucoma patients. Methods The interventions consisted of optic disk imaged by means of HRT-Ⅱ and visual field (VF) detected with Oculus Twinfield perimetry. The CACG patients then were divided into two groups according to the VF discriminant standard and mean defect (MD) of Oculus Twinfield perimetry, the group with the glaucomatous VF defect and the group without VF defect. The optic disk was described with 14 optic disk parameters. The optic disc parameters between the normal and the patients were compared. The optic disks were also classified as "normal/borderline/outside normal limits" on the basis of MRA. The results from MRA and from LDF provided in the HRT-Ⅱ were compared. Main Outcome Measures Optic disk parameters, MD of the VF, the VF discriminant standard, the sensitivity and specificity of HRT-Ⅱ examination. Results Between the normal and CACG patients, differences of the most of optic disk parameters were significant statistically (P

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