Pbh, Inc.

Jerome A Legerton

John M Evans

Chun-Shen Lee

Praful C Doshi

Methods for fabricating annular mask lens for vision correction having diffraction-reducing edges are provided. The lens body having an annular mask that forms a 'soft edge' by gradually decreasing the transmissivity radially from the center aperture to the annular mask area. The methods introduce varying levels of a coloring agent (e.g., dye) into certain portions of the lens.

Methods for fabricating annular mask lens having diffraction-reducing

Annular mask lens for vision correction having diffraction-reducing edges. The lens body having an annular mask that forms a 'soft edge' by gradually decreasing the transmissivity radially from the center aperture to the annular mask area.

Annular mask lens having diffraction reducing edges

An annular mask lens for the treatment of optical aberrations such as but not limited to night myopia, spherical aberration, aniridia, keratoconus, corneal scarring, penetrating keratoplasty, and post refractive surgery complication. The lens has an annular mask having an aperture larger than conventional pinhole contact lens. The aperture having a 'soft' inside edge and which mask has a gradually increasing transmissivity radially toward the outer edge of the mask.

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Los Gatos, CA, United States of America

Jerome A Legerton