Horizontal versus vertical dark-adapted pupil diameters in normal individuals
Horizontal versus vertical dark-adapted pupil diameters in normal individuals
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DOI：
10.1016/j.jcrs.2004.05.029
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发表时间：
2004-12-01
影响因子：
2.8
通讯作者：
Brown, SM
中科院分区：
文献类型：
--
作者：
Khanani, AM;Archer, SM;Brown, SM
目的：为了确定正常人水平和垂直暗适应入瞳直径（PD）之间的差异的分布：德克萨斯理工大学健康科学中心，拉伯克，得克萨斯州，USA.Methods：在这项观察性队列研究中，高放大率红外瞳孔摄影进行了26个正常志愿者的右眼，从20至47岁。水平和垂直PD使用市售的数字图像软件进行测量，考虑到摄影视差的效果。结果：在24名受试者（85%），垂直PD大于水平PD，在8名受试者（31%），它是0.30 mm至0.50 mm。2例受试者的水平直径稍大，但差异为
Purpose: To determine the distribution of the difference between the horizontal and vertical dark-adapted entrance pupil diameters (PDs) in normal individuals.Setting: Texas Tech University Health Sciences Center, Lubbock, Texas, USA.Methods: In this observational cohort study, high-magnification infrared pupil photography was performed of the right eye of 26 normal volunteers from 20 to 47 years of age. The horizontal and vertical PDs were measured using commercially available digital-image software, taking into account the effect of photographic parallax.Results: In 24 subjects (85 %), the vertical PD was larger than the horizontal PD; in 8 subjects (31 %), it was 0.30 mm to 0.50 mm larger. In 2 subjects, the horizontal diameter was slightly larger but the difference was