Uchio E, Ohno S, Kusakawa T
Department of Ophthalmology, Yokohama City University School of Medicine, Japan.
J Cataract Refract Surg. 1995 Nov;21(6):690-6. doi: 10.1016/s0886-3350(13)80568-8.
We implanted several kinds of intraocular lenses (IOLs), calculated the spherical aberration using a computed ray-tracing system, and investigated the correlation between glare disability and spherical aberration and the difference in glare disability among the different IOL types. Type A IOLs (convex-plano), except for those with high power, had the smallest spherical aberration. Type B IOLs (biconvex, anterior more curved) had the smallest spherical aberration at high power. Type D IOLs (biconvex, posterior more curved) had the largest spherical aberration. The correlation between glare disability and spherical aberration was statistically significant for types A, B and C (equiconvex) IOLs. There was no correlation between glare disability and spherical aberration for Type D IOLs, although they showed the smallest glare disability of the four types. These results indicate that the spherical aberration of an IOL, which is calculated by an optical design program, may be a good criterion for selecting an IOL design.
我们植入了几种人工晶状体（IOL），使用计算机光线追踪系统计算球差，并研究了眩光失能与球差之间的相关性以及不同类型IOL之间眩光失能的差异。A型IOL（凸平型），除高屈光度者外，球差最小。B型IOL（双凸型，前表面更弯曲）在高屈光度时球差最小。D型IOL（双凸型，后表面更弯曲）球差最大。对于A型、B型和C型（等凸型）IOL，眩光失能与球差之间的相关性具有统计学意义。D型IOL虽然在四种类型中眩光失能最小，但眩光失能与球差之间无相关性。这些结果表明，通过光学设计程序计算得出的IOL球差可能是选择IOL设计的一个良好标准。
