Abstract: Disclosed are a novel monomer, and oxygen-permeable copolymers made therefrom, as well as contact lenses made from said copolymers, wherein the novel monomer has the formula: ##STR1##

Abstract: A contact lens case is provided which includes a cannister open at its upper end for receiving lens washing fluid and a cap adapted to be secured to and seal the cannister. The cap includes a securing ring adapted to engage the cannister so as to secure the cap to the cannister. The cap further includes a lens retaining portion having at least two lens receptacles pivotably mounted on a shoulder. A leaf spring is provided in the shoulder for urging the lens receptacles apart. A turning knob is provided on the cap and is connected to a planetary gear mechanism for causing the lens retaining portion to rotate in the cannister as the turning knob is rotated.

Abstract: An intraocular lens of the type having a plurality of legs which center the lens in the anterior or posterior chamber by tangential contact between eye tissue and a region on each leg, wherein the region is composed of a compressible material. Also disclosed are homogeneous lenses in which the legs are colored.

Abstract: Compounds of the general formula ##STR1## wherein n, R.sub.1, R.sub.2 and X are defined herein, are effective inhibitors of polymerization of vinylic monomers, particularly acrylic monomers. The inhibitors are easily, efficiently, and thoroughly removed from solution with the monomer by contact with charcoal.

Abstract: The present invention relates to a method of modifying a surface of a soft contact lens to make the lens resistant to soiling. The method comprises initiating a reaction between the unhydrated lens surface containing carboxylic acid or alcohol moieties and agents capable of reacting with carboxylic acid or alcohol moieties in order to produce a surface which then either has a hydrophobic coating, a nonionic hydrophilic coating or is charged.

Abstract: A contact lens is disinfected in an aqueous H.sub.2 O.sub.2 solution. The H.sub.2 O.sub.2 solution is neutralized and transformed in situ into a buffered, saline storage solution by adding a neutralizer such as sodium sulfite or sodium thiosulfate, and optional buffering agents. The neutralizer has a coating which dissolves to release the ingredients only a period of time after it is added, so that it can be put into the H.sub.2 O.sub.2 solution at the same time that the lens is.

Abstract: A method for altering the radius of curvature of the cornea which includes the steps of making incisions into the cornea and affixing a rigid gas permeable contact lens, having predetermined radius of curvature, to the eye to have the cornea conform to the shape of the lens.

Abstract: An interpenetrating network polymer is obtained by mixing hydrophilic monomer vinyl pyrrolidone and hydrophobic monomer (5-alkylene-m-dioxanyl) acrylic ester in the presence of at least two crosslinking agents and, optionally, hydroxyalkyl acrylic ester and catalysts and causing polymerization to occur. Contact lenses made from the polymer have high tensile strength and can absorb a high degree of water.