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白种人中,75%～95%的原发性青光眼是开角型(POAG)的,闭角型(PACG)只占很小比例,在亚洲人和爱斯基摩人中则恰好相反,PACG要占原发性青光眼的80%～90%。据报道,爱斯基摩人PACG的患病率达2%～8%,而白种人只有0.1%。似乎可以用群体性前房浅的趋势来解释PACG的高发病率。亚洲人PACG的患病率介于白种人和爱斯基摩人之间。现有的生物统计学资料并未明显显示亚洲人的前房浅。PACG可以在群体基础上通过各种技术评估中央或周边前房深度、测量眼压或视盘、视野检查等方法来进行筛选。人口统计学资料.病史和家族史在PACG大面积筛选中有重要作用。高危人群包括妇女、年龄超过50岁的人、PACG先证者的直系亲属和远视眼患者。
In Caucasians, 75% to 95% of primary glaucoma are open angle (POAG), PACG only a small proportion, and vice versa in Asia and Eskimos, where PACG accounts for 80% ~ 90% of primary glaucoma. It has been reported that the prevalence of PACG in Eskimos ranges from 2% to 8%, compared with only 0.1% in Caucasians. It seems that the tendency to mild PACG may be explained by the shallow group anterior chamber. The prevalence of PACG in Asians is between that of Caucasians and Eskimos. The available biometric data do not clearly show that Asians have a shallow anterior chamber. PACG can be based on the group through a variety of techniques to assess the central or peripheral anterior chamber depth, intraocular pressure measurement or optic disc, visual field inspection and other methods to be screened. Demographics. History and family history play an important role in PACG screening. High-risk groups include women, people over the age of 50, immediate family members of PACG probands, and patients with hyperopia.