Lens edge features for determing lens placement and alignment
AssigneeJohnson & Johnson Vision Care, Inc.
InventorsChristopher Wildsmith, Michael F. Widman
Life of this patent
Estimating the term…
Abstract
A contact lens having a lens edge defining an outer periphery of the contact lens, an optic zone positioned within the lens edge designed to provide corrective vision for a patient, a Lens Center having a vertical axis and a horizontal axis passing therethrough, and first and second fiducial indicators present at first and second different locations around the lens edge. The first and second fiducial indicators each include at least one recess into or at least one projection extending outwardly from the lens edge and are different from one another.
Claims26
A contact lens comprising:
- a lens edge defining an outer periphery of said contact lens;
- an optic zone positioned within said lens edge, said optic zone designed to provide corrective vision for a patient;
- and
- a Lens Center having a vertical axis and a horizontal axis passing therethrough;
- and
- first and second fiducial indicators present at first and second different locations around said lens edge,
- said first and second fiducial indicators each comprising at least one recess into or at least one projection extending outwardly from said lens edge and being different from one another.
A contact lens comprising:
- a lens edge defining an outer periphery of said contact lens;
- an optic zone positioned within said lens edge, said optic zone designed to provide corrective vision for a patient;
- a Lens Center having a vertical axis and a horizontal axis passing therethrough;
- and
- a first recess in said lens edge at a first location and extending between first and second points along said lens edge;
- and
- a dual notch comprising adjacent second and third recesses in said lens edge at a second location around said lens edge that is different than said first location, said dual notches extending between third and fourth points along said lens edge.
A contact lens comprising:
- a lens edge defining an outer periphery of said contact lens;
- an optic zone positioned within said lens edge, said optic zone designed to provide corrective vision for a patient;
- and
- at least a first fiducial indicator present at a predetermined location around said lens edge, said first fiducial indicator comprising a recess into or projection extending outwardly from said lens edge.
A contact lens comprising:
- a lens edge defining an outer periphery of said contact lens;
- and
- an optic zone positioned within said lens edge, said optic zone designed to provide corrective vision for a patient;
- wherein said lens edge is curved around its entire periphery other than along a predetermined first portion wherein said lens edge is straight.
Dependencies are inferred from the claim text.