CAJ | 학술논문

目的通过波前像差仪测量球面与非球面硬性透气性角膜接触镜(RGPCL)对全眼像差的影响.方法 24例(48眼)近视患者,随机分成两组,每组12例,按照两阶段交叉设计:一组先配戴美康镜片(球面设计),另一组先配戴美尼康镜片(非球面设计),日戴1个月后测量戴镜时的全眼像差,之后停戴1个月,更换另一种镜片继续日戴1个月后再次测量戴镜时的像差.对配戴两种镜片时的像差值进行交叉设计的方差分析.结果配戴两种不同设计的镜片时,全眼总像差均方根(RMS)值分别为(0.439±0.183)μm和(0.427±0.190)μm,差异无统计学意义.配戴两种不同设计的镜片时,单项像差中离焦(F=56.175,P＜0.01)、垂直散光(F=4.263,P=0.029)和四叶草(F=3.410,P=0.037)的差异有统计学意义,其中配戴美尼康镜片的离焦数值高于美康,垂直散光、四叶草反之.其他各项像差值在两种镜片中差异无统计学意义.结论近视眼配戴球面及非球面设计的RGPCL时的像差值无显著差异,但非球面镜片形成的“偏负泪液镜”可造成更多的正性离焦,同时,非球面设计镜片相对球面镜片可更好地控制散光及某些高阶像差.
목적 통과파전상차의측량구면여비구면경성투기성각막접촉경(RGPCL)대전안상차적영향.방법 24례(48안)근시환자,수궤분성량조,매조12례,안조량계단교차설계:일조선배대미강경편(구면설계),령일조선배대미니강경편(비구면설계),일대1개월후측량대경시적전안상차,지후정대1개월,경환령일충경편계속일대1개월후재차측량대경시적상차.대배대량충경편시적상차치진행교차설계적방차분석.결과 배대량충불동설계적경편시,전안총상차균방근(RMS)치분별위(0.439±0.183)μm화(0.427±0.190)μm,차이무통계학의의.배대량충불동설계적경편시,단항상차중리초(F=56.175,P＜0.01)、수직산광(F=4.263,P=0.029)화사협초(F=3.410,P=0.037)적차이유통계학의의,기중배대미니강경편적리초수치고우미강,수직산광、사협초반지.기타각항상차치재량충경편중차이무통계학의의.결론 근시안배대구면급비구면설계적RGPCL시적상차치무현저차이,단비구면경편형성적“편부루액경”가조성경다적정성리초,동시,비구면설계경편상대구면경편가경호지공제산광급모사고계상차.
Objective To compare aberrations in eyes wearing different designs of rigid gas permeable contact lenses (RGPCLs) using a wavefront analyzer.Methods Forty-eight eyes of 24 patients were included in this two-phase crossover design study.They were randomly divided into two groups with 24 eyes of 12 patients in each group.One group wore Meikang lenses (spherical design) first and then wore Menicon Z lenses (aspherical design) one month later.The order was reversed for the other group.An Allegretto wavefront analyzer was used for analyzing aberrations.data were analyzed with crossover design ANOVA.Results There were no significant differences for the root mean square (RMS) values with different lens designs:RMSMenicon [(0.439±0.183)μm] vs RMSMeikang [(0.427±0.190)μm].However,there were some differences for single aberrations:Z20 (F=56.175,P＜0.01) was larger with Menicon lenses than with Meikang lenses.On the contrary,Z22 (F=4.263,P=0.029) and Z44 (F=3.410,P=0.037) were larger with Meikang than with Menicon.Conclusion Different designs for RGPCLs had no significant effect on the RMS values.However, the negative tear-lens caused by aspheric lenses may lead to more positive defocus.At the same time, the aspheric lens design can control astigmatism and some higher-order aberrations better than the spherical lens.