Dynamic stabilization zones for contact lenses

Patent metadata

Field	Value
Publication number	US-10718959-B2
Application number	US-201715403329-A
Country	US
Kind code	B2
Filing date	Jan 11, 2017
Priority date	Feb 13, 2012
Publication date	Jul 21, 2020
Grant date	Jul 21, 2020

Abstract

A contact lens incorporating one or more dynamic stabilization zones fabricated from a material that is readily deformable under eyelid pressure during blinking allows for the control over rotation of the contact lens on the eye. As the material deforms, the angle of contact between the eyelid and the one or more dynamic stabilization zones changes as does the rotational force acting on the contact lens.

First claim

What is claimed is:

1. A method for making an ophthalmic device, the method comprising:
forming a contact lens requiring rotational stability when on an eye, the contact lens being formed from a first material;
forming one or more capsules with a flexible outer material and pre-filled with at least one of a fluid or gel; and
incorporating one or more dynamic stabilization zones into the contact lens only outside of the optic zone by forming one or more cavities at a fixed location in the contact lens and placing the one or more capsules in the one or more cavities such that they redistribute and change shape within the one or more cavities under eyelid pressure at eye temperature, the one or more dynamic stabilization zones form an angle of contact with eyelids wherein the angle of contact between the one or more dynamic stabilization zones and the eyelids changes when the eyelids move across the one or more dynamic stabilization zones by changing a shape of the one or more capsules such that the angle of contact between the eyelids and the one or more dynamic stabilization zones increases during blinking thereby increasing a rotational force acting on the contact lens until the eyelids are substantially in contact with one another thereby flattening the one or more capsules comprising the one or more dynamic stabilization zones, the one or more dynamic stabilization zones being positioned in a predetermined location to achieve a result.

Assignees

• Johnson & Johnson Vision Care

Inventors

• Hawke Ryan
• Otts Daniel B

Classifications

• G02C7/04 Primary

  Contact lenses for the eyes (disinfection or sterilisation of contact lenses A61L12/00) · CPC title

• G02C7/048 Primary

  Means for stabilising the orientation of lenses in the eye · CPC title

• G02C7/049

  Contact lenses having special fitting or structural features achieved by special materials or material structures · CPC title

• B29D11/00048

  composed of parts with dissimilar composition (B29D11/00057 takes precedence) · CPC title

• A61F9/00

  Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand (caps with means for protecting the eyes A42B1/0181; visors for helmets A42B3/22; eye baths A61H35/02; sunglasses or goggles having the same features as spectacles G02C) · CPC title