PCT No. PCT/CH89/00159 Sec. 371 Date May 7, 1990 Sec. 102(e) Date May 7, 1990 PCT Filed Sep. 1, 1989 PCT Pub. No. WO90/02535 PCT Pub. Date Mar. 22, 1990.The device is useful for detecting deposts on the surface of contact lenses and changes in the material of the contact lenses. It consists of an optically transparent rod-shaped body (1) with two end faces. One end face (2), in which the contact lens is placed, has a smooth surface and can be spherical, aspherical or toroidal, with a curvature in the range of that of the contact lens to be examined. The other end face (3) has a smooth or mat surface and can be flat, convex or concave. The rod-shaped body (1) may also be assembled from elements (4, 8, 11). The device is cheap to manufacture and simple for occulists, opticians and wearers of contact lenses to use.
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