简介:目的了解高度近视眼视网膜周边病变发生的频度并初步观察准分子激光原位角膜磨镶术(excimerlaserinsitukeratomileusis,LASIK)对变性视网膜的影响.方法对286人(568眼)屈光度在-7.00D以上的LASIK术前患者进行散瞳眼底三面镜检查,并对其中存在视网膜变性的115眼术后的眼底情况进行12~18个月的随访.结果568眼被检者中,发现各种网膜变性125眼,占被检眼数的22%,其中格子样变性53眼(9.33%),霜样变性30眼(5.28%),囊样变性8眼(1.41%).其他类型变性34眼.发现网膜干性裂洞及亚临床视网膜脱离共11眼(1.94%).格子样变性以颞侧区域出现的频率最高,占其发生率的77.4%,鼻侧占22.6%,两者间差异显著(P<0.01).125眼眼底变性中,115眼接受了LASIK手术,其中28眼行氩激光光凝治疗后1~6个月接受了手术治疗.术后对以上患者进行12~18个月的随访观察,未发现视网膜脱离.结论屈光手术前,对高度近视患者进行眼底三而镜检查可避免或减少术后视网膜脱离的发生.
简介:AIM:Toevaluatetheefficacyofintralesionalradiofrequencyablationinthetreatmentofperiorbitalsyringomas.·METHODS:Wetriedtheintralesionalradiofrequencyablationfor64patientswithperiorbitalsyringomasfrom2007to2011.Theoperationwasperformedunder2.5loupemagnifications.Thehandpiecewasassembledwithaneedleelectrodeandconnectedtotheradiofrequencyablationapparatus.Theelectrodewastheninsertedintothetargetlesionsindermisanddeliveringinjurytothebaseofthesetumors.Resultswereassessedclinicallybycomparingpre-andpost-treatmentphotographsandpatientsatisfactionrates.·RESULTS:Clinicalimprovementincreasedwitheachsubsequenttreatmentsession.Thepercentofpatientswhoseclinicimprovementgradewere≥3aftereachsessionwasrespectively71.9%(Session1),83.3%(Session2),and100%(Session3).Thestatisticalresultsindicatedtheconcordanceoftheclinicalassessmentandthesatisfactionlevelofpatients(kappa=0.78ofthesession1;kappa=0.82ofthesession2).Themajorityofpatientshadgoodorexcellentcosmeticresults.Postoperatively,therewerenopermanentsideeffectsorrecurrences.·CONCLUSION:Asanewtechniqueofminimallyinvasion,theintralesionalradiofrequencyablationwasfoundtobeaneffective,inexpensive,highlypreciseandsafewayoftreatingperiorbitalsyringomas.