Smith G, Lu C W
Department of Optometry, University of Melbourne, Parkville, Victoria, Australia.
Optom Vis Sci. 1991 Jan;68(1):12-21. doi: 10.1097/00006324-199101000-00003.
We compared the theoretical peripheral power errors and oblique astigmatism of eyes corrected with commercially available intraocular lenses (IOL's) with experimental data of normal phakic eyes. The peripheral power errors and the oblique astigmatism of the pseudophakic eye are larger than those of phakic eyes. The most sensitive component of the optical system of the pseudophakic eye to the peripheral power errors is the shape of the IOL, but only if the lens is away from the iris. The corneal and the retinal surfaces do not affect the peripheral power errors and oblique astigmatism significantly. A plano-convex lens with the flat surface facing the cornea gives the least peripheral power errors and oblique astigmatism and thus the value closest to the experimental data of phakic eyes. However, this design does not give the minimum spherical aberration. Therefore, eyes corrected with IOL's are expected to have poorer peripheral retinal image quality than normal phakic eyes.
我们将市售人工晶状体（IOL）矫正眼的理论周边屈光力误差和斜向散光与正常有晶状体眼的实验数据进行了比较。假晶状体眼的周边屈光力误差和斜向散光大于有晶状体眼。假晶状体眼光学系统对周边屈光力误差最敏感的部分是IOL的形状，但前提是晶状体远离虹膜。角膜和视网膜表面对周边屈光力误差和斜向散光影响不显著。平面朝着角膜的平凸透镜周边屈光力误差和斜向散光最小，因此其值最接近有晶状体眼的实验数据。然而，这种设计并不能使球差最小。因此，预计IOL矫正眼的周边视网膜图像质量比正常有晶状体眼差。
