Translating presbyopic contact lens
AssigneeJohnson & Johnson Vision Care, Inc.
InventorsJeffrey H. Roffman, Philippe F. Jubin, Edgar V. Menezes, Pierre-Yves Gerligand, Timothy A. Clutterbuck, Khaled A. Chehab
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Abstract
Lenses for correcting presbyopia are translating, multifocal contact lenses with pseudotruncations which are asymmetric about the vertical meridian.
Claims28
A method of designing or fabricating a translating presbyopic contact lens comprising an optical zone, and a pseudotruncation which is asymmetric about the vertical meridian, wherein the pseudotruncation comprises an elongated, arcuate thickened portion in the lens, peripheral to the optical zone but inside of the edge, wherein said thickened portion is asymmetrical with the vertical meridian of the lens.
Dependencies are inferred from the claim text.