| 摘要 |
PCT No. PCT/IT89/00033 Sec. 371 Date Nov. 23, 1990 Sec. 102(e) Date Nov. 23, 1990 PCT Filed May 8, 1989 PCT Pub. No. WO89/11672 PCT Pub. Date Nov. 30, 1989.A multifocal contact lens, having progressive eccentricity in an area coaxial relative to the optical center, is obtained through the lens outer surface turning on a lathe, in the optical area involved, by means of a computer controlled lathe, based on special computer programs. The contact lens provided as said above allows vision problems concerning both far range vision and near range vision, in miopic or hypermetropic subjects, to be simultaneously corrected. |
