Assessment of the scleral spur in anterior segment optical coherence tomography images
Assessment of the scleral spur in anterior segment optical coherence tomography images
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DOI：
10.1001/archophthalmol.2007.46
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发表时间：
2008-02-01
影响因子：
--
通讯作者：
Aung, Tin
中科院分区：
文献类型：
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作者：
Sakata, Lisandro M.;Lavanya, Raghavan;Aung, Tin
目的：评估眼前段光学相干断层扫描(AS-OCT)图像中巩膜骨刺的可见性。方法：这项横断面观察性研究包括502名年龄在50岁或以上、既往无眼科问题且来自新加坡一家社区诊所的受试者。所有参与者都接受了房角镜和AS-OCT(Visante；Carl Zeiss Meditec，加利福尼亚州都柏林)。由2名接受过青光眼专科训练的检查员在AS-OCT图像上评估巩膜刺的位置，定义为巩膜向内突出并伴有内表面曲率变化的点。结果：72%的右眼图像可以确定巩膜刺的位置。在AS-OCT图像上，在房角镜上闭合角度的象限以及在上、下象限获得的图像中，与鼻象限和颞象限相比，其位置较差(分别为67%、75%和80%；P
Objective: To assess visibility of the scleral spur in anterior segment optical coherence tomography (AS-OCT) images.Methods: This cross-sectional observational study included 502 participants aged 50 years or older who had no previous ophthalmic problems and were recruited from a community clinic in Singapore. All participants underwent gonioscopy and AS-OCT (Visante; Carl Zeiss Meditec, Dublin, California). Scleral spur location was assessed in AS-OCT images by 2 examiners with glaucoma subspecialty training and was defined as the point where there was an inward protrusion of the sclera with a change in curvature of its inner surface.Results: Scleral spur location could be determined in 72% of the images of the right eye. Its location on AS-OCT images was less detectable in quadrants with a closed angle on gonioscopy and also in images obtained in the superior and inferior compared with the nasal and temporal quadrants (64%, 67%, 75%, and 80%, respectively; P