Johnson and Johnson Vision Care, Inc.

Gregory J Hofmann

Philippe F Jubin

Pierre-Yves Gerligand

Jeffrey H Roffman

Cornelis Petrus Hendriks

Steven Ernest Franklin

Jason Tokarski

Thom Warmerdam

Shahrokh Zeinali-Davarani

Larry G Jones

Thomas R Rooney

Douglas G Vanderlaan

Zaffir A Chaudhry

Edgar V Menezes

Patrick J Hood

Mark A Ealey

David D Pearson

Kenneth W Foley, Jr

Douglas G Clark

Jacqueline M Roche

Douglas Clark

A contact lens incorporating one or more surface modified zones on the anterior surface of the lens may be utilized to generate a friction driven rotational force when the upper and/or lower eyelids pass over the one or more regions during blinking. A small difference in the coefficient of friction between the modified and unmodified regions of the lens may result in an equivalent rotational force to that of a thickness gradient lens. This small difference in the coefficient of friction produces a means to orient and stabilize the contact lens on eye.

Friction stabilized contact lenses

An optimized contact lens design and method which leverages the strain energy of the system when placed on eye that improves centration, translation, and stabilization characteristics, or any combination thereof, in order to improve both comfort and vision. A contact lens design and methodology wherein the lens-eye resulting strain energy is optimized to achieve the desired function be it centration, translation, or stabilization. Since the lens strain energy is directly driven by the amount of lens deformation, it is possible to control the lens strain energy through the modulus of the material, design of the lens geometry, namely the radii or curvature, peripheral thickness profiles, edge or rim shapes. The surface pressure and/or lens strain energy can be optimized for a given population by averaging the ocular eye shape/surface. Alternatively the lens strain energy can be optimized for a single given eye (i.e., custom design).

Contact lens with optimized performance and method of design

Translating contact lenses which are truncated for correcting presbyopia and whose design is optimized to maximize translation ability while maintaining comfort when the lens is worn on eye. Truncation of the lenses results in a non-round geometry while still retaining under-lid residency in select portions of the lens itself. Maximum thickness and back surface radius of curvature along with ramp shape can be optimized individually or in combination to maximize translation of the lens relative to the eye, when the lens is positioned on eye.

Truncated translating contact lens with optimized performance and method of design

Feature patterns may be incorporated into the peripheral region of the back curve surface of contact lenses in order to increase tear exchange between the contact lens and the cornea. The feature patterns may be based upon fractal geometry and be incorporated anywhere in the periphery of the lens. The placement feature patterns are preferably determined utilizing a combination of simulations and experimentation.

Fractal features for enhanced tear exchange

Contact lenses have design features to enhance translational properties such as dimples and coating treatments.

Contact lenses with improved movement

The present provides deformable molds and methods for manufacturing ophthalmic lenses using deformable molds. The molds of the invention may be used in the custom manufacture of ophthalmic lenses.

Deformable molds and methods for their use in the manufacture of ophthalmic lenses

The invention provides methods for designing patterns for use in tinted contact lenses in which the patterns are generated using algorithms. The method of the invention provides an objective description of the pattern for purposes of tooling, metrology and manufacturing of a lens incorporating the pattern.

Methods for designing tinted contact lenses

A shape memory polymer contact lens mold is formed from a sheet of a shape memory polymer in a press, an agile tool or by an agile tool formed by an inert gas at a temperature at or above the glass transition temperature which is thereupon cooled to below the glass transition temperature and removed therefrom.

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Jacksonville, FL, United States of America

Gregory J Hofmann