简介：<正>视网膜脱离是严重致盲眼病之一,正确的选择术式是治愈此病的关键。笔者回顾1995年至1998年收治的86例原发性视网膜脱离病例(简称网脱),采用巩膜冷凝、外加压、环扎、不放液手术方法,操作简便,疗效显著,现报告如下。

简介：目的探讨视网膜脱离环扎术后玻璃体腔径改变及屈光度变化,揭示它们之间的变化规律及相互关系.方法采用自动角膜曲率计,眼A超及电脑验光仪对我院46例患者于巩膜环扎术前、术后1周、1个月及3个月进行角膜屈光力,眼轴及屈光度的测量.结果(1)术后1周角膜屈光力,散光值较术前稍增加,无统计学意义.而术后1个月,3个月角膜屈光力,散光值与术前检查基本相同.(2)术后眼轴明显延长,主要表现在玻璃体腔径的改变,近视度亦增加.随时间推移,眼轴(玻璃体腔径)逐渐缩短,近视度减少.但术后1个月,3个月眼轴长度(表现在玻璃体腔径),近视度较术前明显增加.结论巩膜环扎术后玻璃体腔径的改变是导致服轴延长的主要原因,进而引起眼屈光度的改变.

简介：目的探讨直视下孔源性视网膜脱离复位手术的临床效果。方法孔源性视网膜脱离16例（16眼）由同一术者进行外路手术，术前三面镜下，间接检眼镜下仔细严格定位裂孔，术中肉眼下大致定位，全部行环扎并裂孔变性区外垫压，根据裂孔大小冷凝或非冷凝，尽可能安全放液，根据眼压，裂孔形态，部位选择注入气体填充物，定期观察术后视力、眼内反应和视网膜复位情况。结果16例视网膜脱离手术患者，术后随访半年，视网膜完全复位14眼（87．5％），视力较术前提高12只眼（75％），不变3只眼（18．75％），不完全复位少量视网膜下液吸收缓慢1眼，再次脱离行玻璃体切割手术视网膜复位1眼（6．25％）。最好矫正视力0．1以上10只眼（62．5％）。结论手术前的仔细检查定位裂孔，环扎术避免遗漏裂孔及变性区均为直视下外路治疗孔源性视网膜脱离提供安全有效的保证，为眼科医师提供新的视网膜脱离手术方式的选择，且手术时间较短，操作相对简单，疗效有明确的保证。

简介：AIM:Tostudytheimpactofscleralflapposition,underwhichtheposteriorchamberintraocularlenses(PC-IOL)weresulcus-fixedbytrans-scleralsuture,oncorneaastigmatism.METHODS:Twenty-sixaphakicorcataracteyeswerecomprisedinthisprospectivenoncomparativecaseseriesstudy.Eleveneyeshadtraumaticcataractremovedwithoutsufficientcapsularsupport,3hadblunttraumawithsubluxatedtraumaticcataract,8hadundergonevitreoretinalsurgeryand4hadcongenitalcataractremoved.Theaverageagewas54years(range21-74years),with17menand7women.ThefoldablePC-IOLwasfixedinsulcusbytrans-scleralsuture.TheincisionforIOLimplantationwasmade1mmposteriortolimbusalongthesteepestmeridianofcornea,whilescleralflapstoburytheknotsoftrans-scleralsutureweremadealongtheflattestmeridian.Allthesurgerieswereperformedbyasingledoctor(MaL),andthefollowupwasatleast13months(range13-28months).Thepreoperative,3monthsand1yearpostoperativecornealcurvaturealongthesteepestandflattestcorneameridianandoverallcorneaastigmatismwerecompared.RESULTS:Thecurvaturealongthesteepestmeridianchangedfrom44.25±2.22Dpreoperativelyto44.08±2.16Dat3monthspostoperatively,and43.65±5.23Dat1yearpostoperatively(P>0.05);thecurvaturealongtheflattestmeridianchangedfrom41.24±2.21Dpreoperativelyto43.15±3.94Dat3monthspostoperatively,and42.85±5.17Dat1yearpostoperatively(P<0.05);andthesurgeryinducedastigmatism(SIA)oncorneawascalculatedbyvectoranalysis,whichwas2.42±2.13Dat3monthspostoperatively,and2.18±3.42Dat1yearpostoperatively,thedifferencewasstatisticallysignificant(P<0.05).CONCLUSION:Thescleralflapmadealongtheflattestmeridian,underwhichtheposteriorchamberintraocularlenses(PCIOL)weresulcus-fixedbytrans-scleralsuture,cansteepenthecorneainvaryingdegrees,thusreducingpreexistingcornealastigmatism.