视网膜脱离巩膜环扎术后眼前节结构的初步观察

目的 观察巩膜环扎术后眼前节结构的变化，探讨术后继发性闭角型青光眼的发病机制。方法 应用超声生物显微镜检查３０例（３３只眼）孔源视网膜脱离患者术前、后３－７天的活体奶前节形态结构，并分别进行定量测定，检查结果经统计学分析两组间配对ｔｓｗｃｗ，以Ｐ〈０．０５作为差异有显著性标准。结果 术前１只眼存在裂隙样睫状体脱离。术后１１只眼（３３．３％）发生睫状体脱离，睫状体增厚水肿；术前睫状体厚度为（８２１．

A study on ocular anterior segment structure after scleral buckling surgery for retinal detachment

Objective To study the changes of the ocular anterior segment structure and the mechanism of angleclosure glaucoma after scleral buckling surgery Method 30 patients (33 eyes) who suffered from rhegmatogenous retinal detachment had been observed before and 37 days after the surgery The quantitative measurement of the ocular anterior segment structure in vivo had been done by ultrasound biomicroscopy (UBM) The results were statistically analyzed Results There was one eye with splitlike ciliary body detachment before the surgery, there were 11 eyes with ciliary body detachment (333%) and the ciliary body was thickened and edematous after surgery Before the surgery the thickness of the ciliary body was (821326421) m and after the surgery it was (9452710416) m, the difference being statistically significant, P<005 Parameters reflecting the changes of the anterior chamber angle before and after surgery were as follows: the anterior chamber angle became narrower, the angle open distance 500 decreased, the trabeculariris angle decreased in degree, the angle of the scleral lateral side and iris long axis decreased, and all these differences were statistically significant, P<005, but the depth of the central anterior chamber had no obvious change, and the difference was not statistically significant, P>005 Conclusions Ciliary body detachment and edema are often found after scleral buckling surgery, and postoperatively the central anterior chamber depth has no obvious change; ciliary body detachment and edema perhaps are related to the angleclosure glaucoma after the surgery