简介：目的:观察玻璃体切除联合带蒂的非翻瓣内界膜(ILM)转位手术治疗大直径黄斑裂孔(macularhole,MH)的效果。方法:前瞻性研究。2016-12/2017-02于江苏省人民医院收治的9例10眼经频域光学相干断层扫描(SD-OCT)确诊为大直径MH患者(MH>400m),进行玻璃体切除联合ILM转位术。术前、术后1d,1wk,1、3、6mo随访SD-OCT、最佳矫正视力(bestcorrectedvisualacuity,BCVA)及微视野检查。结果:患者裂孔闭合率为100%;术前BCVA(LogMAR)1.19~0.54,术后视力提高显著,末次随访0.70~0.50(P=0.005);黄斑8°平均视网膜光敏感度(MS)值术前3.14~4.52dB、术后末次随访8.91~5.53dB(P=0.008);黄斑2°MS值术前1.46~2.94dB、术后末次随访6.33~4.90dB(P=0.008)。术前固视不稳定8眼,术后末次随访固视不稳定1眼。结论:玻璃体切除联合内界膜转位手术可以有效治疗大直径MH,具有较高的裂孔闭合率,术后视功能改善显著。

简介：AIM:Todeterminethenormativevaluesofwhite-towhitecornealdiameterwithOrbscanIITopographySystemandtocomparerightandlefteyesdatainthenormalyoungpopulation.METHODS:Atotalof1001healthyparticipantsaged18-45yparticipatedinthisobservationalcross-sectionalstudy.Thestudypopulationconsistedof616femaleand385malesubjects.ThecornealdiameterwasmeasuredwiththeOrbscanII.Thedifferencesbetweengenders,betweenrightandlefteyesandage-relatedchangeswereevaluated.StatisticalanalyseswereperformedusingStudent’st-test.RESULTS:Theaveragewhite-to-whitedistanceinourstudypopulationwasrecordedas11.65±0.36mm(median:11.60mm,mode:11.70mm,minimum:10.50mmandmaximum:13.60mm).Thewhite-to-whitedistancewas11.60±0.35mminmalesand11.71±0.36mminfemaleswhichwasstatisticallydifferentbetweengenders(P<0.01).However,white-to-whitedistancewasnotstatisticallydifferentbetweenrightandlefteyes.Inaddition,thisparameterdecreasedwithincreasingage.Considering95%confidenceinterval,cornealdiameterlessthan10.93mmandgreaterthan12.34mmwouldbeconsideredasmicrocorneaandmegalocornea,respectivelybasedonthisstudypopulation,usingtheOrbscanIItopography.CONCLUSION:DetaileddescriptionandanalysisofcornealdiameterwithOrbscandemonstratethattheobtainedaveragevalueofhorizontalwhite-to-whiteishigherinmalethanfemaleanddecreasesslightlywithincreasingage.Ourdataalsosuggeststhecutoffvaluesfordefinitionofmicrocorneaandmegalocornea,whichcanbeemployedwiththispopulation.

简介：目的评价小切口超声乳化及大直径折叠式人工晶体植入对于治疗高度近视性白内障的安全性和疗效.方法表面麻醉下对40例68只眼高度近视白内障患者施行透明角膜3.2mm切口超声乳化吸除,植人大直径后房型折叠式人工晶体.观察术中的安全性及术后疗效.结果术中无一例发生后囊膜破裂、前房出血以及爆发性脉络膜上腔出血.术后1天裸眼或矫正视力≥0.5者,占54.41%;术后1周为70.59%;1个月为82.35%;视力≥1.0者,术后1天为8.82%、术后1周为25%、1个月为41.18%.结论小切口超声乳化及大直径折叠式人工晶体植入治疗高度近视白内障,具有视力恢复快、无严重并发症等特点,但是对手术技巧要求较高.术后视力提高与高度近视眼底病变有关.