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单纯性青光眼手术的适应症一直是一个困难的临床问题。30年前,一般对此病的预后,决定于用缩瞳剂后眼压的水平,视乳头的情况,而最重要的是决定于视野改变。前房角镜在青光眼的诊断方面有价值,它可以决定前房角是否开放,青光眼是原发或是继发;在手术前可以观察前房角有无大血管,有助于选择手术的部位。眼压描记(Tonography)可以显示房水排出情况,房水流畅系数正常者,其预后较佳;眼压易控制,视野可保存。但正如 Miller 所指出,它并不能代替一些临床的判断,眼压的电描绘只是一个辅助方法;应全面考虑视野改变及其他事项。
Indications for simple glaucoma surgery have always been a difficult clinical problem. 30 years ago, the general prognosis of the disease depends on the use of miotic agent after IOP levels, depending on the situation of the nipple, and most importantly decided to change the field of vision. Gonioscopy in the diagnosis of glaucoma valuable, it can decide whether the anterior chamber angle is open, glaucoma is primary or secondary; in the anterior chamber angle before surgery can be observed with or without large blood vessels, to help select the site of surgery . Tonography can show the discharge of aqueous humor, normal fluid chamber coefficient, the prognosis is good; IOP easy to control, visual field can be saved. But as Miller points out, it does not replace some of the clinical judgments, and electrical mapping of IOP is only an adjunct; full consideration should be given to changes in vision and other issues.