历史的回顾: 单眼内障术后两眼屈光参差,需用触镜矫正。但截用时间既受限制,装戴手续又麻烦,老人手指颤动者尤感困难,故常不能坚持使用。据文献统计,1961～1966年间132人配触镜者,1968年已有46％不用。另有308个成人在十年后仅20％还在使用。而单眼无晶体不戴触镜的视功能差,病人对手术不满意。 Historical review: monocular two eyes refractive anisometropia, need to use contact lens correction. However, the cut-off time is limited, wearing the formalities and troublesome, the elderly fingers tremble are particularly difficult, so often can not insist on using. According to the statistics of the literature, there were 132 contact lenses between 1961 and 1966, 46% of which had not been used in 1968. Another 308 adults are still using only 20% after 10 years. The monocular non-crystal lens is not wearing the poor visual function, the patient is not satisfied with the surgery.