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Recent developments in ophthalmology. Advances in correction of the optical problems of the postoperative cataract patient.

The crystalline lens of the eye is embryologically a small pinched-off piece of surface ectoderm and, thus, is frequently involved in diseases of the skin. The most common lens abnormality in these situations is the formation of opacity, and these are often termed "syndermatotic cataracts." 1 When they develop, they are treated exactly like other cataracts. Although there have been numerous attempts to treat cataracts medically (some recent studies hypothesize that the progress of cataracts may be slowed down by the administration of salicylates 2 ), at this time, the standard treatment of cataracts is their surgical removal. Through the years, this procedure has become one of the safest operations performed on the human body, with a success rate of about 90%. 3 However, the postoperative restoration of vision by optical devices has, up to now, not been as successful. To grasp the reason for this, one must understand that the