在闭角型青光眼急性发作时,机能性与器质性前房角阻滞的鉴别诊断对于针对发病机制选择手术方式具有重要意义。为此目的,临床中采用角膜加压和高渗溶液试验等诊断方法。但在角膜后弹力层形成皱折的某些急性发作性青光眼者,当角膜有水肿时,进行角膜加压试验检查前房角是极为困难的。在大多数情况下,应用甘油虽对房角宽度无重要影响,但患者常不易耐受。基于减少色素膜血管充血,以及虹膜晶体隔后移和前房角开放的原理,作者提出房角镜检试 In acute angle-closure glaucoma, the differential diagnosis of functional and anterior chamber angle fractures is of great importance for the choice of surgical approach to pathogenesis. To this end, the clinical use of corneal pressure and hypertonic solution test and other diagnostic methods. However, in some acute-onset glaucoma in which the corneal posterior elastic layer forms wrinkles, it is extremely difficult to perform a corneal pressure test to examine the anterior chamber angle when the cornea has edema. In most cases, the use of glycerol, although no significant impact on the width of the corner, but patients are often not easy to tolerate. Based on the principle of reducing the pigment film vascular congestion and the iris lens posterior compartment and anterior chamber angle opening, the author proposed the gonioscopy