Carl Zeiss Vision Gmbh

Carl Zeiss Vision International Gmbh

Darryl Meister

Ray Steven Spratt

Timo Kratzer

Gerhard Kelch

Helmut Wietschorke

Wolf Krause

Markus Welscher

Jesús Miguel Cabeza Guillén

Jesús-Miguel Cabeza- GUILLÉN

A method for designing a progressive lens is disclosed. The method includes obtaining a wavefront measurement of an eye, determining an initial design for the progressive lens based on the wavefront measurement, determining information about how changes in one or more higher order aberrations of the eye affect a second order correction for the aberrations of the eye based on information derived from the wavefront measurement, modifying the initial design of the progressive lens to provide a final progressive lens design, and outputting the final lens design.

Wavefront optimized progressive lens

The invention provides multi-focal segmented lenses with boundaries that include at least one blended portion and at least one sharp portion. The lenses may possess, for example, the aesthetic advantage of blended multi-segment or progressive lenses while largely retaining the functional advantage of multi-segment lenses with sharp segment boundaries.

Multi-focal lenses with segmented boundaries

The current invention is directed to a method for designing an ophthalmic lens element, the method comprising the steps of determining a wavefront aberration of an eye in a reference plane, wherein the wavefront aberration of the eye can be described by a first series of polynomials of ascending order up to a first specific order and corresponding first coefficients; determining a first vision correction of a second specific order; determining at least one specific point over an aperture of the adapted ophthalmic lens element; determining a high-order wavefront aberration in the reference plane for each specified point of the adapted ophthalmic lens element, wherein the high-order wavefront aberration can be described by a third series of polynomials of ascending order above the second specific order up to and including the first specific order and corresponding third coefficients; and determining a second vision correction of the second specific order.

Method for optimizing a spectacle lens for the wavefront aberrations of an eye and lens

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Olathe, KS, United States of America

Darryl Meister