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US 2025/0073020 A1Published application
Ophthalmic lenses with first and second portions
AssigneeStaar Surgical Company, Inc.
InventorsCandido Dionisio PINTO, Constance Elizabeth FAY
Life of this patent
Estimating the term…
Abstract
Methods of vision correction that include implanting a first lens and a second lens of a lens pair. The methods include implanting the first lens into a first eye of the subject, the first lens configured with positive extended depth of field, and implanting the second lens into a second eye of the subject, the second lens configured with negative extended depth of field, where the second eye is different than the first eye.
Claims25
A lens configured for implantation into an eye of a human, said lens comprising:
- an optic comprising transparent material, said optic having an anterior surface and a posterior surface, each of said anterior surface and said posterior surface having a surface vertex, said optic having an optical axis through said surface vertices,
- wherein at least one of said anterior and posterior surfaces comprises a surface having a first portion and a second portion, said first portion having a shape that comprises a conic, biconic, or biaspheric envelope offset by perturbations with respect to the envelope comprising an aspheric higher order function of radial distance from the optical axis, and
- said second portion having a shape that comprises a conic, biconic, or biaspheric envelope not offset by perturbations of the envelope comprising an aspheric higher order function of radial distance from the optical axis, the conic constant of the conic, biconic, or biaspheric envelope of the second portion may be selected to blend with the caustic of the first portion.
Dependencies are inferred from the claim text.