| 摘要 |
PCT No. PCT/AU92/00290 Sec. 371 Date Jan. 18, 1994 Sec. 102(e) Date Jan. 18, 1994 PCT Filed Jun. 16, 1992 PCT Pub. No. WO92/22845 PCT Pub. Date Dec. 23, 1992.An improved contact lens (1) having an optic zone (4) and a radial planar zone (5) such that the radial planar zone has an array of contours which are defined by a waveform or waveforms (2, 3) comprising crests and troughs on the back and/or front surface of the lens. The waveform(s) provide(s) means to enable proper location and orientation of the lens on the eye of a wearer by interaction between the lens, the eye and an eyelid and facilitating increased gas transmission through the lens. |
