特发性黄斑裂孔手术治疗前后的视功能

目的 探讨特发性黄斑裂孔手术治疗前后患者的视功能。方法 19例(19只眼)特发性黄斑裂孔患者，其中2期3只眼，3期10只眼，4期6只眼。采用玻璃体视网膜手术治疗黄斑裂孔。术前和术后均进行国际标准视力、激光视网膜视力、明视强度反应ERG和Humphrey　30-2程序视野测定。 结果 (1)国际标准视力：术前视力0.01至0.1，术后视力0.04至0.4，术前术后视力改变差异无显著性的意义(p＞0.05)。(2)激光视网膜视力：术前激光视网膜视力0.12至0.4，术后激光视网膜视力 从0.2至0.63。术前和术后激光视网膜视力改变差异有显著性的意义(P＜0.05)。(3)ERG明视强度反应曲线：术前和术后b波最大振幅Rmax(μV)和代表曲线斜率的n值的改变差异均无显著性的意义(P＞0.05)。术后半饱合光刺激强度K(cd·sec/m2)的对数单位Log值，较术前降低，差异有显著性的意义(P＜0.05)。(4)Humphrey视野：术后 0～10° 较术前光阈值提高，差异 有显著性的意义(P＜0.05)。术前和术后15～30°光阈值差异无显著性的意义(P＞0.05)。 结论 手术治疗IMH能提高视网膜黄斑部视锥细胞功能。（中华眼底病杂志，2000，16：213-284）

The visual function of idiopathic macular hole before and after surgery

Objective To investigate the visual function of idiopathic macular hole before and after macular surgery. Methods Vitreous-retinal surgery was performed in 19 patients(19 eyes) with idiopthic macular hole.Among them,3 eyes belonged to stage 2，10 eyes stage 3 and 6 eyes were stage 4. The visual function including international standard visual acuity,laser retinal visual acuity,photopic ERG intensity responses- and Humphrey 30°-2 visual field were tested and compared before and after the surgery. Results (1)International standard visual acuity was from 0.01 to 0.1 preoperatively,and from 0.04 to 0.4 post operatively,the difference was not significant(P＞0.0 5).(2)Laser retinal visual acuity was from 0.12 to 0.4 preoperatively,and from 0.2 to 0.63 postoperatively,the difference was significant (P＜0.05).(3)In photopic ERG intensity responses:the Log K value of bwave decreased after surgery (P＜0.05),but no obvious change found in Rmax and n Value after operation.(4)Humphrey visual field examination revealed the thresholds for 0-10° increased after surgery(P＜0.05),but not obvious for 15-30°． Conclusion The visual function of the macular cones are increased by macular surgery for IMH.(Chin J Ocul Fundus Dis，2000，16：213-284)