CAJ | 학술논문

目的通过比较新型双极角膜接触镜电极与Jet单极角膜电极在多焦视网膜电图检测中的表现和配戴者的主观舒适度,以评估该电极在临床视觉电生理检测中的应用前景.方法对照研究.采用多焦视网膜电图一阶Kernels (FOK)刺激程序.在15例志愿者(年龄15～36岁)的同一正常眼(裸眼视力≥1.0)分别采用进口Jet角膜接触电极和新型双极角膜接触镜电极进行记录,分别对以黄斑中心凹为中心的五环区域P1反应密度,P1振幅及峰时进行比较.每种电极检查结束后行角膜荧光素钠染色,进行点状上皮染色计数,对受检者进行问卷调查以了解两种电极的检查舒适度.数据进行配对t检验.结果新型角膜电极在多焦视网膜电图记录时所得P1波1～5环反应密度、振幅均较Jet电极所得相应结果偏低,但1～5环两者所记录的变化趋势基本相同,均符合眼底后极部感光细胞的分布特征.峰时两者差距较小,在2～5环两者差异无统计学意义,被检查者在两种角膜电极使用后荧光素钠染色几乎均为阴性,问卷调查显示两者舒适度差异无统计学意义.结论新型双极角膜接触镜电极同样可以准确地记录多焦视网膜电图,对角膜组织无损伤,且配戴舒适,同Jet电极相比还有放置简便、节省检查时间、可一次性应用避免交叉感染等优势.
목적 통과비교신형쌍겁각막접촉경전겁여Jet단겁각막전겁재다초시망막전도검측중적표현화배대자적주관서괄도,이평고해전겁재림상시각전생리검측중적응용전경.방법 대조연구.채용다초시망막전도일계Kernels (FOK)자격정서.재15례지원자(년령15～36세)적동일정상안(라안시력≥1.0)분별채용진구Jet각막접촉전겁화신형쌍겁각막접촉경전겁진행기록,분별대이황반중심요위중심적오배구역P1반응밀도,P1진폭급봉시진행비교.매충전겁검사결속후행각막형광소납염색,진행점상상피염색계수,대수검자진행문권조사이료해량충전겁적검사서괄도.수거진행배대t검험.결과 신형각막전겁재다초시망막전도기록시소득P1파1～5배반응밀도、진폭균교Jet전겁소득상응결과편저,단1～5배량자소기록적변화추세기본상동,균부합안저후겁부감광세포적분포특정.봉시량자차거교소,재2～5배량자차이무통계학의의,피검사자재량충각막전겁사용후형광소납염색궤호균위음성,문권조사현시량자서괄도차이무통계학의의.결론 신형쌍겁각막접촉경전겁동양가이준학지기록다초시망막전도,대각막조직무손상,차배대서괄,동Jet전겁상비환유방치간편、절성검사시간、가일차성응용피면교차감염등우세.
Objective To compare the application and degree of comfort of a new type of dipolar corneal contact lens electrode and the Jet corneal contact lens electrode; to evaluate the potential of this new type of dipolar electrode for multi-focal electroretinograms.Methods In a comparative study,a new type of dipolar corneal contact lens electrode and the Jet corneal contact lens electrode were applied to the same eye of 15 volunteers (15 eyes) for multi-focal electroretinogram examination.The first order kernel was choosen.Mean response densities,amplitude and latency of P1 in rings 1-5 were recorded.Corneal fluorescein sodium dyeing was assessed after the examination,and the degree of comfort was evaluated with a questionnaire.Data were analyzed using paired t test.Results P1 response densities and amplitudes in rings 1-5 of the dipolar corneal contact lens electrode were lower than those of the Jet corneal contact lens electrode,but the tendencies of the response densities and amplitudes were almost the same.There was no significant difference in latency between the two kinds of electrodes in rings 2 to 5.Corneal fluorescein sodium dyeing was almost negative with both electrodes.The degree of comfort with the Jet electrodes was better than for the dipolar electrodes,but the difference was not significant.Conclusion Compared with the Jet electrode,the new type of dipolar electrode can also record correctly,and it is safe and comfortable for the cornea.The dipolar electrodes are more convenient and cheaper than the Jet electrodes,so they cannot only save time but also avoid cross infection.