Nd-YAG激光晶體后囊膜切開術(shù)后早期視覺(jué)電生理觀察.pdf

1、Nd:YAG激光晶體后囊膜切開術(shù)后早期視覺(jué)電生理觀察碩士研究生二指導(dǎo)教師:專業(yè)名稱:姜倩枉張豐菊教授眼科學(xué)摘要目的:Nd:YAG激光晶體后囊膜切開術(shù)是臨床上應(yīng)用最廣泛的治療后發(fā)性白內(nèi)障的方法，但術(shù)后眼底并發(fā)癥的報(bào)道很多，而它是否對(duì)視網(wǎng)膜、視神經(jīng)功能存在著影響，目前尚未見相關(guān)報(bào)道。本研究觀察了白內(nèi)障囊外摘除后房型人工晶體植入術(shù)后發(fā)生后發(fā)障行該手術(shù)后視覺(jué)電生理的變化，從而為后發(fā)性白內(nèi)障行Nd:YAG激光治療時(shí)其合并癥的預(yù)防和治療提供客觀依據(jù)

2、。廠方法:病例組:2000.52001.1本院收治的后發(fā)性白內(nèi)障患者30例32冶反，男12例13眼，女18例19眼，年齡5178歲，平均66.7歲。對(duì)照組:15例巧眼，為老年性白內(nèi)障囊外摘除后房型人工晶體植入后未發(fā)生后發(fā)障、后囊膜完整，各項(xiàng)檢查排除眼底和視神經(jīng)疾病者。病例組行Nd:YAG激光后囊膜切開后1小時(shí)、1周、12周行圖形視覺(jué)誘發(fā)電位(PVEP)和全視野閃光視網(wǎng)膜電圖(FERG)檢查，同時(shí)行視力，裂隙燈，眼底鏡，眼壓等常規(guī)檢查。記

3、錄分析PVEP中Pioo波的振幅和潛伏期、FERG中視桿細(xì)胞反應(yīng)、最大反應(yīng)、視錐細(xì)胞反應(yīng)的ab波的振幅和潛伏期以及振蕩電位(OPs)的總振幅。并采用SPSS計(jì)算機(jī)方差分析各組間各觀測(cè)指標(biāo)的差異。結(jié)果:1常規(guī)檢查:視力均有不同程度的提高，平均裸眼視力由術(shù)前的0.21土0.13到術(shù)后12周提高到0.5310.22，最佳矯正視力由術(shù)前VisualElectrophysiologicalExaminationAfterNeodymium:YAG

4、LaserPosteriorCapsuiotomyABSTRACTPurpose:Nd:YAGposteriorcapsulotomyisthemostfrequentlyusedmethodtorestoretheopticalclarityofpatientswithaftercataractstoclinicalophthalmologybutmanyposteriorsegmentcomplicationshavebeenrep

5、ortedyetlittleattentionwasgiventoitsinfluenceonthefunctionofretinaandopticnerve.ThisstudywastakentoinvestigatetheVEPandERGofthesepatientscomparingwiththecontrolsothattoofferanobjectivebasisforfurtherstudy.Methods:NdNAGla

6、serposteriorcapsulotomieswereperformedon30aftercataractpatientswith32eyesinwhich18werefemaleswith19eyesand12weremaleswith13eyestheyrangedinagesfrom5178(average66.7)years.Ofthe28eyesallhadposteriorchamberintraocularlenses

7、(PCIOL)implantedatthetimeoftheextracapsularcataractextraction(ECCE)surgery.And15patientswith15eyeshavingundergonetheECCEandPCIOLsurgerywhichhadintactposteriorcapsulesweretakenascontrol.Inthecontrolsubjectstherewerenosign

8、sofabnormitiesoftheretinaandopticnerveaftercarefulexamination.Thepatternvisualevokedpotential(PVEP)andflashelectroretinogram(FERG)wererecordedinalltheseeyes.Theresultswereevaluatedbycomparingthedataofdifferenttimegroupso