由于人工晶体类型繁多,眼科医师难以权衡每一种人工晶体的利弊。广告宣传往往与临床研究不相符,而且不实际。晶体的光学部就是人工晶体的镜片。镜片的设计对多数眼科医师来说可能是最易引起争论和最难理解的。非球面、双凸面、镜片的凸面向后、定位孔数目减少和直径改小,这些都被认为是一些改进。以下将从理论上和临床上讨论以上各种设计的特点。 Because of the wide variety of intraocular lenses, it is difficult for ophthalmologists to weigh the pros and cons of each type of intraocular lens. Advertising is often not consistent with clinical research, and not practical. The optical department of the lens is the lens of artificial crystal. The lens design may be the most controversial and difficult to understand for most ophthalmologists. Aspheric, biconvex, convex rear of the lens, the reduction in the number of positioning holes and the smaller diameter, these are considered to be some improvements. The following will be the theoretical and clinical discussion of the characteristics of the various designs.