LASIK、PRK等以往的角膜屈光手术通常只纠正球镜与柱镜度数,随着近年来像差概念逐渐引入眼科学研究,人们发现部分患者客观视力好却主观感觉视物模糊(暗视力差、炫光、重影等)、视物变色的主要原因正是传统手术仅仅纠正了低阶像差,对于球形像差、彗形像差等高阶像差并没有予以纠 LASIK, PRK and other previous corneal refractive surgery usually only correct spherical and cylinder degrees, with the gradual introduction of ophthalmology in recent years the concept of ophthalmology, it was found in some patients objective but good subjective visual acuity blurred vision (poor eyesight , Glare, ghosting, etc.), the main reason for the material discoloration is that traditional surgery only corrected low-order aberrations, spherical aberration, coma and other high-order aberrations did not be corrected