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目的：ｖａｎ Ｈｅｒｉｃｋ 介绍了一种用来评估前房角的方法，该方法为评价前房角的非侵犯性方法，它无需表面麻醉或特殊设计的接触镜，将裂隙光束投到角膜和巩膜之间，通过比较角巩缘光束和虹膜投影宽度来估算前房角宽度。假如虹膜投影光带宽度比角膜宽度小２５ ％ 以上，该眼就有房角关闭的危险，需要用前房角镜观察。ｖａｎ Ｈｅｒｉｃｋ 试验一直被广泛使用至今。ｖａｎ Ｈｅｒｉｃｋ 等曾表示该试验与前房角镜所见有着很高的符合率。最近的研究表明，中国人的眼睛前段特点与白色人种相比，有些不同，尤其是角膜周边曲率较陡，角膜直径较小。如果事实如此，则基于白色人种而得出的ｖａｎ Ｈｅｒｉｃｋ 试验与前房角镜的关系就有可能不适用于中国人，为此需作进一步的临床验证。方法：①检测对象为１０１ 例中国人，年龄１９ ～７５ 岁（ 平均：５１．９ ±１５ ．７ 岁） ，女性５９ 例，男性４２ 例。健康状态良好，并排除眼部异常和疾病。②采用摄影法评价ｖａｎ Ｈｅｒｉｃｋ 比率。使用ｖａｎ Ｈｅｒｉｃｋ 等所述的可摄影裂隙灯显微镜，用透明胶片（Ｅｋｔａｃｈｒｏｍｅ ２００） 拍摄右眼角膜的鼻侧和颞侧照片。将透明片投影到屏幕上，通过测量角膜光带宽度和角膜后表面到虹膜的距离，由此?
Aim: van Herick introduced a method for assessing the angle of the anterior chamber that is a noninvasive method of assessing the angle of the anterior chamber without the need for surface anesthesia or specially designed contact lenses to deliver a slit beam to the cornea and sclera The anterior chamber angle width was estimated by comparing the angular marginal beam with the iris projection width. If the Iris projection width is 25% smaller than the width of the cornea, the eye has the risk of closing the angle and requires gonioscopy. The van Herick trial has been widely used so far. van Herick and others have said that the test and gonoscopic see have a high coincidence rate. Recent studies have shown that the anterior eye features of Chinese people are somewhat different from those of white people, especially the steep curvature around the cornea and the smaller corneal diameter. If this is the case, the relationship between the van Herick trial based on white races and gonioscopy may not be applicable to Chinese, and further clinical validation is warranted. Methods: ① The subjects were 101 Chinese, aged 19-75 years (mean: 51.9 ± 15.7 years), 59 females and 42 males. Good health, and rule out eye abnormalities and diseases. ② photographic evaluation of van Herick ratio. The nasal and temporal images of the cornea of the right eye were taken with a transparencies (Ektachrome 200) using a photographable slit lamp microscope as described by van Herick et al. The transparent film projected onto the screen, by measuring the corneal light width and the corneal surface to the iris distance, which?