Invention Grant
- Patent Title: Contact lens for keratoconus
- Patent Title (中): 圆锥角膜隐形眼镜
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Application No.: US13304246Application Date: 2011-11-23
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Publication No.: US08936362B2Publication Date: 2015-01-20
- Inventor: Jerome A. Legerton
- Applicant: Jerome A. Legerton
- Applicant Address: US CA San Diego
- Assignee: Vicoh, LLC
- Current Assignee: Vicoh, LLC
- Current Assignee Address: US CA San Diego
- Agency: Sheppard Mullin Richter & Hampton LLP
- Main IPC: G02C7/00
- IPC: G02C7/00 ; G02C7/02 ; G02C7/04

Abstract:
The present invention is directed to a non-deforming contact lens for keratoconus patients having a displaced central zone. In particular, the central zone is displaced from the geometric center of the lens. The shape of the central zone is egg or spoon-shaped and is rotationally asymmetrical with one semi-meridian that is shorter than a corresponding semi-meridian. An intermediate transition zone is formed integral with the periphery of the central zone, and a peripheral zone is formed integral with the periphery of the intermediate transition zone, forming a round contact lens.
Public/Granted literature
- US20120105804A1 CONTACT LENS FOR KERATOCONUS Public/Granted day:2012-05-03
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