睫状环阻滞性青光眼的超声生物显微镜检查

目的 应用超声生物显微镜结合Ａ超检查睫状环阻滞性青光眼,以了解急性发作时睫状环阻滞的状况。方法 对２７例（３１只眼）抗青光眼术后发生的睫状环阻滞性青光眼进行实时超声生物显微镜检查,与同一眼术前的超声生物显微镜影像进行对比观察;并以５４只正常眼和７２只原发性闭角型青光眼作为对照研究。结果 睫状环阻滞性青光眼发作时,１８只眼（５８．１％）睫状体和晶体完全相贴,１３只眼（４１．９％）睫状体和晶体间有一间

Studies of mechanism of malignant glaucoma using ultrasound biomicroscope

Objective To study the mechanism of malignant glaucoma using ultrasound biomicroscope (UBM) combined with general A scan and to observe the conditions of cilio lens block in living eyes at the realtime when malignant glaucoma is occurring. Methods 31 eyes from 27 patients with malignant glaucoma were evaluated and 54 normal eyes and 72 eyes of primary angle closure glaucoma were studied as the controls. Results Of the 31 eyes, close attachments between the ciliary body and the lens were found in 18 eyes (58.1%) and slits between them were found in 13 eyes (41.9%) during the onset of malignant glaucoma. Ciliary body thickness increased significantly ( P <0.05). Fluid in the supraciliary space was found in 11 eyes. Conclusions The mechanism of malignant glaucoma is associated with the abnormal relationship among anterior vitreous, ciliary process and lens periphery. Fluid in the supraciliary space makes the ciliary process closer to the lens periphery. It is one of the factors causing cilio lens block. The ultrasound biomicroscopic image is a new better practicable method to diagnose malignant glaucoma during its onset compared with other methods at present used in the clinical work. It is much more valuable to differentiate the pupillary block glaucoma from malignant glaucoma by using ultrasound biomicroscopy.