| 摘要 |
Soft contact lens defining a fixed "iris" correcting short-sighted vision and long-sighted vision. This device consists of a non-transparent translucent lens provided with a single orifice at the location of the pupil or at a distance of from a half to one millimetre along its axis for short sight and with two orifices separated by twice the distance constituted between the external edge of the tube and the first orifice for long sight. The orifice of the internal concave portion of the lens is at the location of the pupil or at a distance of a half to one millimetre along its axis. These devices, according to the invention correct short sight and long sight. <IMAGE>
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