Contact lenses and methods relating thereto
AssigneeCooperVision International Limited
InventorsArthur Bradley, Baskar Arumugam, Paul Chamberlain, Martin Webber
Life of this patent
Estimating the term…
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AssigneeCooperVision International Limited
InventorsArthur Bradley, Baskar Arumugam, Paul Chamberlain, Martin Webber
Estimating the term…
A contact lens (101), the lens (101) including an optic zone (102). The optic zone (102) comprises a central region (105), the central region (105) having a centre of curvature that is on an optical axis (119). The optic zone (102) comprises a first annular region (103). The first annular region (103) has an off-axis centre of curvature that is a first distance from the optical axis (119). The first annular region (103) has a sagittal power profile that increases with increasing radial distance from the optical axis (119) with a gradient of between 1.0 D/mm and 20.0 D/mm. At a point halfway across the width of the first annular region (103), the sagittal power matches the average radial sagittal power of the central region (105).
A contact lens, the lens including an optic zone comprising:
A contact lens, the lens including an optic zone comprising:
Dependencies are inferred from the claim text.