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Abstract #10038 Published in IGR 5-3
Scanning laser polarimetry in patients with acute attack of primary angle closure
Lai JSM; Tham CCY; Chan JCH; Yip NKF; Tang WWT; Li PSH; Yeung JCC; Lam DSCJapanese Journal of Ophthalmology 2003; 47: 543-547
PURPOSE: To compare the retinal nerve fiber layer measurements of attacked eyes with their fellow eyes after a single unilateral attack of acute primary angle closure (APAC). METHODS: Patients with a single episode of APAC in one eye, successfully treated with laser peripheral iridotomy, were recruited. Eyes with persistently raised intraocular pressure (IOP) after resolution of the acute attack were excluded. Scanning laser polarimetry was carried out at six months after remission of the acute attack. The various parameters between the attacked and fellow eyes were compared using Student's t test. RESULTS: Twenty-six patients (24 female, two male, mean age 66.9 ± 8.1 years) were recruited. The duration of APAC ranged from five to 98 hours (mean, 36.3). Mean presenting IOP during the acute attack was 62.0 ± 9.4 mmHg. Only the mean inferior ratio and ellipse modulation showed a statistically significant difference between the attacked and fellow eyes among the 12 standard scanning laser polarimetry measurement parameters. CONCLUSIONS: No severe retinal nerve fiber layer damage was documented in eyes that suffered a single episode of APAC with a duration of attack of up to 48 hours. With a duration of attack of longer than 48 hours, retinal nerve fiber layer damage was detected.
Dr. J.S.M. Lai, Department of Ophthalmology, United Christian Hospital, Hip Wo Street, Kwun Tong, Kowloon, Hong Kong, China
Classification:
6.9.1 Laser scanning (Part of: 6 Clinical examination methods > 6.9 Computerized image analysis)
9.3.1 Acute primary angle closure glaucoma (pupillary block) (Part of: 9 Clinical forms of glaucomas > 9.3 Primary angle closure glaucomas)
