Campos-Outcalt D, Carmichael J M
J Fam Pract. 1981 Mar;12(3):451-7.
Glaucoma is defined as elevated intraocular pressure resulting in visual field defects. Elevated intraocular pressure without visual field defects is referred to as ocular hypertension. The prevalence of open-angle glaucoma in the population above the age of 40 years is less than one percent. Approximately one out of ten people with elevated ocular pressure has glaucoma. The concept of variable sensitivity explains why high ocular pressures do not always result in glaucoma. Glaucoma screening by tonometry can be justified only if used in conjunction with visual field testing.
青光眼被定义为导致视野缺损的眼内压升高。眼内压升高但无视野缺损被称为高眼压症。40岁以上人群中开角型青光眼的患病率低于1%。每十名眼压升高的人中约有一人患有青光眼。可变敏感性的概念解释了为什么高眼压并不总是导致青光眼。只有在与视野测试结合使用时，通过眼压测量进行青光眼筛查才是合理的。
