Novartis Ag

Jordan Hall

Joseph Michael Lindacher

Ming Ye

Roger Biel

Peter Hagmann

Bernhard Seiferling

Axel Heinrich

Günter Lässig

Uwe Haken

Gabriela Cocora

Daryl Reece

Deborah Jean Mulcahy

Honghui Lu

Carlton Pope

There is described a process for manufacturing an ophthalmic lens and an apparatus for forming an ophthalmic lens, in particular a silicone hydrogel contact lens, wherein in a mold assembly a first and a second mold half () are first arranged in an intermediate closed position in which the mold surfaces of the two mold halves are spaced apart from each other at a distance increase (d) of preferably 1 to 100 &#x3bc;m relative to a final distance (d) in a final closed position, and wherein, during curing of the lens forming material (), the mold surfaces () of the mold halves () are actively or passively moved or moving from the intermediate closed position to the final closed position, where the distance increase (d) is 0.

Process for manufacturing an ophthalmic lens

The invention provides a contact lens which requires a predetermined orientation on an eye. The contact lens comprises an anterior surface and an opposite posterior surface. The anterior surface includes a vertical meridian, a horizontal meridian, a central optical zone, a transitional non-optical zone surrounding the central optical zone, a peripheral zone surrounding the transitional non-optical zone, and an edge zone circumscribing and tangent to the peripheral zone. The presence of the transitional non-optical zone provides a continuous transition from the central optical zone to the peripheral zone and enables separate and independent designs of the central optical zone and the peripheral zone. Orientation features are incorporated only in the peripheral zone, does not provide an prism optical distortion, and can maintain a predetermined orientation of the lens on an eye.

Contact lenses

The present invention provides a translating contact lens having a central axis, an anterior surface and an opposite posterior surface. The anterior surface includes an optical zone and a ramped ridge zone, which is disposed below the optical zone and capable of controlling contact lens position on an eye in primary gaze or translating amount across the eye when the eye changes from gazing at an object at a distance to gazing at an object at an intermediate distance or at a nearby object, or both.

Translating contact lens having a ramped ridge

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Atlanta, GA, United States of America

Jordan Hall