Back to results
US 2010/0076554 A1Published application
Light Adjustable Multifocal Lenses
AssigneeCalhoun Vision, Inc.
InventorsChristian A. Sandstedt, Jagdish M. Jethmalani, Shiao H. Chang
Life of this patent
Estimating the term…
Abstract
The invention relates to novel intraocular lenses. The lenses are capable of post-operative adjustment of their optical properties, including conversion from single focal lenses to multifocal lenses.
Claims1
A multifocal lens comprising:
- a first portion of the lens has a first focal length that provides distance vision;
- and
- a second portion of the lens that includes a material that is optically reactive to an external stimulus and has a focal length that is adjusted to a second focal length by application of the stimulus and provides near vision;
- wherein the second portion has a substantially circular shape and is located at a center of the lens, and the first portion has a substantially annulus shape and is located around the second portion.
1 more element
Dependencies are inferred from the claim text.