Coopervision International Limited

Novartis Ag

Roger Brian Minchin Clarke

Robert Oag

Richard Lintern

Mikhail Bashtanov

Will Hamlyn

Karl Jessel

James Richardson

Robert Chisholm

Mark Chalmers

A method of, and apparatus for, aligning an ophthalmic instrument relative to an eye is disclosed, and can include aligning an esthesiometer with a patient's eye. The method can include steps of: directing a beam of light from an ophthalmic instrument to an eye; taking, at a plurality of locations around the beam, measurements of reflections of the light from the eye; determining the position of the ophthalmic instrument relative to the eye from the measurements; and moving the ophthalmic instrument relative to the eye from the determined position to a desired position. The apparatus can include an aperture, a source of collimated light, a plurality of detectors, and a control unit. The control unit determines a position of the ophthalmic instrument relative to the eye and can move relative positions of the ophthalmic instrument and the eye from a determined position to a desired position.

Alignment system for ophthalmic instrument

An electrically-switchable flexible contact lens for conforming to an eye of a user is provided. The lens comprises a liquid crystal cell for changing a focal power of the contact lens, and the liquid crystal cell has a cell gap thickness between a first inner surface and a second inner surface, the liquid crystal cell comprising a diffractive optical element for correcting the vision of a user, wherein the diffractive optical element is arranged to maintain the cell gap thickness by providing support at one or more locations within the cell.

Flexible liquid crystal-containing lenses

Described herein is a contact lens which can actively generate oxygen that is directly supplied to the cornea when it is worn by a patient. The contact lens comprises: a lens body composed of a hydrogel material or preferably a silicone hydrogel material; at least one anode for electrolytically generating oxygen from water in contact with the anode; and at least one cathode operatively coupled with the anode to form an electrolytic cell. The anode and the cathode are embedded within the lens body and operatively connected to a power source and to a control element which automatically applies a potential voltage between the anode and the cathode, drives an electrical current through the anode and the cathode to generate oxygen from electrolysis of water, and controls the timing and duration of electrolysis of water in the eye.

Ophthalmic lenses with oxygen-generating elements therein

Growing community of inventors

Cambridge, United Kingdom

Roger Brian Minchin Clarke