Patent · US Active

Aspheric toric intraocular lens

US8167940B2 · kind B2 · utility

21Cited by

3References

15Claims

0Family size

Assignee

Novartis AG · CH

Inventors

Xin Hong · Arlington, US
James T. Hoffman · Alameda, US
Jihong Xie · Fort Worth, US
Michael Hamlin · Gig Harbor, US

Key dates

Filing date	May 4, 2009
Grant date	May 1, 2012
Priority date	—
Expiry date	Jan 30, 2030

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F2250/0053
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An aspheric toric intraocular lens (IOL) having toricity and asphericity in a single lens. The toricity and asphericity may be provided on separate surfaces, such as an anterior surface and a posterior surface, or the toricity and asphericity may be combined onto a single surface. The edge thickness may be varied sinusoidal to maintain equal edge thickness at 45 degree meridian.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.