简介：目的：评价翼状胬肉切除联合角膜缘干细胞移植术中,结膜植片两种缝合方法临床效果的差异。方法：采用前瞻随机对照试验,将48例48眼初发翼状胬肉患者随机分为A,B两组,每组24例24眼,A组术中结膜植片采用连续锁边缝合法;B组术中结膜植片采用间断缝合法。术中记录结膜缝合时间,术后随访6mo,记录拆线所用时间及眼部刺激评分情况。结果：术中平均植片缝合时间A组为14.05±2.30min,B组为19.34±2.12min,两组差异有统计学（P〈0.01）。眼部刺激情况分值在术后第3d（1.32±0.60vs1.68±0.35）和第5d（0.87±0.24vs1.26±0.68）,A组得分均明显低于B组（P均〈0.05）。A组拆线所用时间为9.15±3.36min,B组拆线所用时间为12.61±3.89min,两组差异有统计学意义（P〈0.01）。结论：连续锁边缝合法提高了手术效率,减轻了术后的刺激症状,是一种安全高效的结膜植片缝合方法。

简介：AIM:ToinvestigatetheeffectofintravitrealinjectionofDL-alpha-aminoadipicacid(DL-α-AAA)onocularrefractivestateandretinaldopamine,transforminggrowthfactor-β2(TGFβ2),vasoactiveintestinalpolypeptide(VIP)inguineapigform-deprivedmyopia.METHODS:Four-week-oldpigmentedguineapigswererandomlyassignedto4groups:normalcontrol,deprivation,deprivationplusDL-α-AAA,deprivationplussaline.Formdeprivationwasinducedwiththeself-madetranslucenteyeshields,andlastedfor14days.8μgDL-α-AAAwasinjectedintothevitreouschamberofdeprivedeyes.Thecornealradiusofcurvature,refractionandaxiallengthweremeasured.Retinaldopaminecontentwasevaluatedbythehigh-performanceliquidchromatographywithelectrochemicaldetection,andTGFβ2andVIPproteinweredetectedbyWesternblotting.RESULTS:Fourteendaysofeyeocclusioncausedtheaxiallengthtoelongateandbecomemyopicintheform-deprivedeyes,withthedecreaseofretinaldopamineandtheincreaseofTGFβ2andvasoactiveintestinalpolypeptide(VIP)protein.IntravitrealinjectionofDL-α-AAAcouldinhibitthemyopicshiftfrom(-3.65±1.06)Dto(-1.48±0.63)D,P<0.01duetogogglesoccludingandcausethedecreaseofretinalTGFβ2proteininthedeprivedeyes.However,intravitrealinjectionofDL-α-AAAhadnosignificanteffectonretinaldopamineandVIPproteinindeprivedeyes.RetinalTGFβ2proteincorrelatedhighlywiththeocularrefraction(y=-3.34+0.31/x,F=74.75,P<0.001)andaxiallength(y=8.39-0.02/x,F=48.32,P<0.001)indifferenttreatmentgroups.·CONCLUSION:IntravitrealinjectionofDL-α-AAAiseffectivelyabletosuppressthedevelopmentofformdeprivationmyopia,whichmaybeassociatedwithretinalTGFβ2proteininguineapigs.