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US 7,731,358 B2Granted
System, apparatus, and method for correcting vision using an electro-active lens
AssigneeE-Vision, LLC
InventorsRonald D. Blum, William Kokonaski, Dwight P. Duston
Life of this patent
Estimating the term…
Abstract
A spectacle lens is disclosed. The disclosed lens provides a vision correcting area for the correction of a wearer's refractive error. The viewing correction area provides correction for non-conventional refractive error to provide at least a part of the wearer's vision correction. The lens has a prescription based on a wave front analysis of the wearer's eye and the lens can further be modified to fit within an eyeglass frame.
Claims16
A lens, comprising:
- a first region having a variable index of refraction;
- a second region associated with unwanted astigmatism, wherein the first region reduces the unwanted astigmatism associated with the second region.
Dependencies are inferred from the claim text.