CAJ | 학술논문

基于人眼光学质量客观评估方法,通过实测的屈光手术前后人眼波前像差数据,研究和分析了球差与离焦的补偿关系.结果表明,对于屈光手术前的近视眼患者,离焦与球差的补偿关系并不明显.对于屈光手术后的近视眼患者,离焦与球差的补偿关系明显,残余离焦可以部分补偿由于高阶像差增加引起的视功能降低.当残余离焦处于0.27D~0.74D范围内,离焦与高阶像差组合后,光学质量提高了20%以上.在屈光手术方案设计时,预留0.27D~0.74D的离焦时,可以使80%的人眼达到更好的视觉矫正效果.
기우인안광학질량객관평고방법,통과실측적굴광수술전후인안파전상차수거,연구화분석료구차여리초적보상관계.결과표명,대우굴광수술전적근시안환자,리초여구차적보상관계병불명현.대우굴광수술후적근시안환자,리초여구차적보상관계명현,잔여리초가이부분보상유우고계상차증가인기적시공능강저.당잔여리초처우0.27D~0.74D범위내,리초여고계상차조합후,광학질량제고료20%이상.재굴광수술방안설계시,예류0.27D~0.74D적리초시,가이사80%적인안체도경호적시각교정효과.
Based on optical quality metrics of human eyes,the counterbalanced relationship between defocus and spherical aberration for wave-front aberration data of preoperative and postoperative myopic eyes is studied.The results show that defocus can not obviously compensate spherical aberration for preoperative patients.But the counterbalanced relationship can be distinctly observed for the postoperative patients,which reveals that the remained defocus can partially ameliorate the influence of the increased higher-order aberrations after corneal refractive surgery on visual performance.For postoperative patients,more than 20% improvement of optical quality can be achieved when the remained defocus ranges from 0.27D to 0.74D.More than 80% of eyes can achieve better visual performance when the remained defocus ranges from 0.3D to 0.75 for a design of vision correction.