摘要
目的采用非接触角膜内皮显微镜观察Nd—YAG激光虹膜切除术、后发膜性白内障切开术前后角膜内皮有无变化。方法对48人80眼(急性闭角型青光眼38人66眼,后发膜性白内障10人14眼)在激光前和激光后一周、一月进行角膜内皮观察。观察指标为细胞密度、平均值、六角型细胞百分比等。结果激光前后闭角型青光眼在一周时角膜内皮细胞密度、六角型细胞的百分数有差异。后发膜性白内障术后一周最大细胞值有差异,一月时均恢复正常。为探讨眼压对角膜内皮的影响,以术后眼压升高5mmHg(1mmHg=0.133kPa)为标准,>5mmHg组与≤5mmHg组在术后一周比较细胞密度、平均值、最大细胞面积三方面均有差异,一月时恢复正常。结论激光手术对角膜内皮有一定影响,术后前节炎症控制及时,注意观察眼压一旦升高立即降压,术前应用降眼压药均能对角膜内皮起到保护作用。
Purpose To investigate the effect on comeal endothelium of YAG laser with non-contact specular microscopy. Methods 48 patients (80 eyes) were taken into survey. The endothelium and average cell count before the operation and one week and one month after the operation of each eye were in vestigated. Results There is statistic decrease of endothelium density and percentage of hexagon cell one week after operation in primary angle closure glaucoma patients. The maximum cell count decreases statistically one week after operation in posterior capsular opacity patients. There are differences of endothelium density, average cellular area and maximum cellular area according to their intraocular pressure (IOP) elevation beyond 5 mmHg taken as an index just after laser operation and within one week after the operation but the differences disappear one month after the operation. Conclusion The elevation of IOP after laser operation has harmful effect on corneal endothelium. The use of anti-glaucoma eyedrops, the minimum laser power, the control of IOP after operation, and the treatment of the secondary inflammation are important to protect the comeal endothelium.
出处
《中国眼耳鼻喉科杂志》
2002年第4期210-212,共3页
Chinese Journal of Ophthalmology and Otorhinolaryngology
