Contact lenses for refractive correction

US9423632B2 · kind B2 · utility

Assignee

• NexisVision, Inc. · US

Inventors

• Eugene de Juan, Jr. · San Francisco, US
• Cary J. Reich · Los Gatos, US
• Yair Alster · Menlo Park, US
• Matt Clarke · Menlo Park, US
• Kuangmon Ashley Tuan · Mountain View, US
• Brian Levy · New York, US
• Raymond Lum · Corona, US
• Jose D. Alejandro · Menlo Park, US

Key dates

• Filing date: Apr 18, 2013
• Grant date: Aug 23, 2016
• Expiry date: Nov 27, 2034

Classification

• Technology area (CPC G): Physics
• CPC primary: G02C2202/08
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Ophthalmic lenses for correcting refractive error of an eye are disclosed. Ophthalmic lenses include a deformable inner portion and a deformable peripheral portion. When disposed over the optical region of an eye, the inner portion is configured so that engagement of the posterior surface against the eye deforms the posterior surface so that the posterior surface has a shape diverging form the refractive shape of the epithelium when viewing with the eye through the ophthalmic lens. The rigidity of the inner portion is greater than the rigidity of the peripheral portion and the ophthalmic lenses are configured to allow movement relative to the eye upon blinking of the eye and to be substantially centered on the optical region of the cornea following the blinking of the eye. Methods of correcting refractive errors of an eye such as astigmatism or spherical aberration using the ophthalmic lenses are also disclosed.