• Patent Title: Multi-curvature edge for ophthalmic lenses
  • Application No.: US16376064
    Application Date: 2019-04-05
  • Publication No.: US11607308B2
    Publication Date: 2023-03-21
  • Inventor: Kamal K. DasJian Liu
  • Applicant: ALCON INC.
  • Applicant Address: CH Fribourg
  • Assignee: ALCON INC.
  • Current Assignee: ALCON INC.
  • Current Assignee Address: CH Fribourg
  • Main IPC: A61F2/16
  • IPC: A61F2/16
Multi-curvature edge for ophthalmic lenses
Abstract:
An exemplary ophthalmic lens includes an optic comprising an anterior optic surface and a posterior optic, and a multi-curvature optical edge surrounding the optic and connecting the anterior optic surface to the posterior optic surface, the multi-curvature optical edge comprising a plurality of tangentially-connected curved surfaces configured to mitigate positive dysphotopsia by directing or diffusing from light incident on the multi-curvature optical edge away from a fovea of a patient.
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