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목적 : To investigate features of the anterior segment (AS) of the affected eye compared to the fellow eye within the same patient in acute primary angle closure (APAC).
방법 : Thirty-six patients with unilateral APAC were imaged using AS optical coherence tomography (OCT) before medical or laser treatment for the acute attack. Anterior chamber depth (ACD), iris curvature (IC), iris thickness at 750 µm from the scleral spur (IT750), lens vault (LV), anterior chamber area (ACA), and iris area (IA) were estimated using Image J software (ver. 1.46). AS parameters measured by AS OCT were compared between the affected eye and the fellow eye within the same patient. Logistic regression analysis was performed to find the risk factors associated with the prediction of APAC.
결과 : When compared to fellow eyes, affected eyes showed significantly shallower ACD (1.90 ± 0.24 and 1.55 ± 0.30 mm, respectively, p < 0.001) and smaller ACA (12.96 ± 2.38 and 10.31 ± 2.34 mm2, respectively, p < 0.001) and greater LV (1.06 ± 0.31 and 1.26 ± 0.36 mm, respectively, p = 0.017). Less IC (odds ratio (OR); 0.001 (95% confidence interval (CI); 0.000, 0.074, p=0.009) and IT750 (OR; 0.005 (0.000, 0.440, p=0.020) and greater LV (OR; 6.847 (0.933, 50.278, p=0.039) were significantly associated with prediction of APAC.
결론 : Greater LV was the most prominent feature of affected eyes compared to fellow eyes in APAC patients when assessed by AS OCT. This may play a role in the development of acute attack in primary angle closure.
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