Patent · US Active

Mask configured to maintain nutrient transport without producing visible diffraction patterns

US8460374B2 · kind B2 · utility

35Cited by

335References

25Claims

0Family size

Assignee

AcuFocus, Inc. · US

Inventors

Bruce A. Christie · Upland, US
Thomas A. Silvestrini · Alamo, US
Kevin F. Hahnen · Center Ossipee, US

Key dates

Filing date	Nov 30, 2005
Grant date	Jun 11, 2013
Priority date	—
Expiry date	Oct 29, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG02C2202/04
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A mask configured to be implanted in a cornea of a patient to increase the depth of focus of the patient includes an anterior surface, a posterior surface, and a plurality of holes. The anterior surface is configured to reside adjacent a first corneal layer. The posterior surface is configured to reside adjacent a second corneal layer. The plurality of holes extends at least partially between the anterior surface and the posterior surface. The holes of the plurality of holes are configured to substantially eliminate visible diffraction patterns.

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