发明名称 BIFOCAL CORNEAL CONTACT LENS AND METHOD OF MAKING SAME
摘要 A bifocal corneal contact lens and method of making same wherein a carrying lens or lens body has a corrective optical prescription for viewing distant objects and has a near viewing portion or bifocal segment fused in an indentation of one surface thereof, said near viewing portion having a corrective optical prescription for viewing near objects, the lens body having a predetermined power to correct for distant vision and the segment having a power equal to the exact refractive add of the eye to correct for near vision and having a size in relation to the size of the pupil of the eye so that the optimum focal points of the lens body and segment are spaced apart a distance less than the radius of the eye and actually overlap and blend together to give a clear and continuous image when the gaze is shifted between near and distant objects without any optical jump or fuzziness of vision occurring.
申请公布号 US3726587(A) 申请公布日期 1973.04.10
申请号 USD3726587 申请日期 1971.03.09
申请人 KENDALL C,US 发明人 KENDALL C,US
分类号 G02C7/04;(IPC1-7):G02C7/04 主分类号 G02C7/04
代理机构 代理人
主权项
地址