Contact lens

摘要

A silicone contact lens has a radial cross-section of the inner face, the rim portion contour of which is convex between a point of inflection and the outer edge. For its manufacture, a silicone precursor is brought between a female and a male mold and is polymerized, and the polymerized contact lens is released from the mold by means of a liquid swelling same.

主权项

1. A silicone contact lens, a radial cross section of the inner surface of which has a rim region between a point of inflection and an outer rim of the contact lens, in which a cross sectional contour is convex, wherein a radius of the convex cross sectional contour is larger than 0.5 mm, and wherein the outer rim of the contact lens shows an irregularity inasmuch as a circle line ascribed to the outer edge according to the criterion of least square deviations has an average squared deviation of at least 1000 μm2.