Invention Grant
- Patent Title: Increased stiffness center optic in soft contact lenses for astigmatism correction
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Application No.: US15203414Application Date: 2016-07-06
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Publication No.: US10209534B2Publication Date: 2019-02-19
- Inventor: Azaam Alli , Dola Sinha
- Applicant: Johnson & Johnson Vision Care, Inc.
- Applicant Address: US FL Jacksonville
- Assignee: Johnson & Johnson Vision Care, Inc.
- Current Assignee: Johnson & Johnson Vision Care, Inc.
- Current Assignee Address: US FL Jacksonville
- Agent Raef M. Shaltout
- Main IPC: C08J3/28
- IPC: C08J3/28 ; G02C7/04 ; G02B1/04 ; B29D11/00 ; C08J5/18 ; B29K105/00 ; B29K33/00 ; B29K83/00

Abstract:
A molded contact lens comprising a stiffer optic zone relative to the peripheral zone of the contact lens provides an optical element for correcting astigmatism without the need for or substantially minimizing the need for the correction of rotational misalignment. The higher elastic modulus optic zone vaults over the cornea thereby allowing a tear lens to form. The tear lens follows or assumes the shape of the back surface of the contact lens. The combination of the tear lens and the optical zone provide an optical element for correction of refractive error.
Public/Granted literature
- US20160313571A1 INCREASED STIFFNESS CENTER OPTIC IN SOFT CONTACT LENSES FOR ASTIGMATISM CORRECTION Public/Granted day:2016-10-27
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