The visual field following acute primary angle closure.

Tin Aung, A. Looi, A. Looi, P. Chew
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引用次数: 45

Abstract

PURPOSE To determine the frequency and type of visual field loss six months after an episode of acute primary angle closure (APAC), and to identify risk factors for the development of such field loss. METHODS This was a cross sectional observational study. All patients who suffered from an episode of APAC at two Singapore hospitals over a one-year period underwent static automated threshold perimetry six months after presentation. RESULTS 38% of (29) patients with APAC have significant visual field defects six months after the acute episode. The majority of those with abnormal fields had hemifield defects, consistent with nerve fiber bundle pattern loss. Those with pre-existing chronic glaucoma or who develop a rise in intraocular pressure during follow-up are at risk of visual field loss. The risk of visual field loss is also significant if the duration of symptoms exceeds 7 days. CONCLUSIONS The frequency of visual field loss at 6 months after APAC was low at only 38%. As the majority of eyes have no evidence of detectable functional damage developing as a consequence of the acute episode, APAC may not be blinding if treated promptly and adequately.
锐角闭合后的视野。
目的了解急性原发性闭角术(APAC)发作6个月后视野丧失的频率和类型,并确定发生这种视野丧失的危险因素。方法采用横断面观察性研究。所有在新加坡两家医院一年内发生APAC发作的患者在就诊后6个月接受了静态自动阈值周边测量。结果29例APAC患者中有38%在急性发作6个月后出现明显的视野缺损。大部分野区异常者为半野区缺损,与神经纤维束模式丧失一致。既往患有慢性青光眼或随访期间眼压升高的患者有视野丧失的风险。如果症状持续超过7天,视野丧失的风险也很大。结论APAC术后6个月视野丧失发生率较低,仅为38%。由于大多数眼睛在急性发作后没有可检测到的功能损伤的证据,如果治疗及时和充分,APAC可能不会致盲。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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