Intraocular lens

US7350916B2 · kind B2 · utility

Assignee

• ALCON INC. · CH

Inventors

• Xin Hong · Arlington, US
• Jihong Xie · Fort Worth, US
• Stephen J. Van Noy · Fort Worth, US
• Dan Stanley · Midlothian, US
• Mutlu Karakelle · Fort Worth, US
• Xiaoxiao Zhang · Fort Worth, US
• Michael J. Simpson · Toronto, CA

Key dates

• Filing date: Apr 4, 2006
• Grant date: Apr 1, 2008
• Expiry date: Aug 15, 2026

Classification

• Technology area (CPC G): Physics
• CPC primary: G02C7/02
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

In one aspect, the present invention provide an ophthalmic lens (e.g., an IOL) that includes an optic having an anterior optical surface and a posterior optical surface, where the optic provides an optical power in a range of about 16 D to about 25 D as measured in a medium having an index of refraction substantially similar to that of the eye's aqueous humor (e.g., about 1.336). At least one of the optical surfaces is characterized by an aspherical base profile such that the optic exhibits a negative spherical aberration in a range of about −0.202 microns to about −0.190 microns across the power range.