公开(公告)号：US20210275291A1

公开(公告)日：2021-09-09

申请号：US17189922

申请日：2021-03-02

Applicant: Alcon Inc.

Inventor： Kamal K. Das ,  William Jacob Spenner Dolla

IPC: A61F2/16

Abstract: A multi-part intraocular lens (IOL) with an interchangeable optic seated on a base and secured by a locking mechanism. The optic comprises an anterior surface with a diameter greater than a diameter of a ring of the base. The posterior side of the optic has a posterior surface, a transition region for contact with the base, and sidewalls and tabs radially outward of the transition region. The sidewalls and tabs overlap at least a portion of the ring to reduce or even prevent decentration and tilt of the optic. Each tab has a lateral extension for coupling to the base.

公开(公告)号：US11559393B2

公开(公告)日：2023-01-24

申请号：US17189922

申请日：2021-03-02

Applicant: Alcon Inc.

Inventor： Kamal K. Das ,  William Jacob Spenner Dolla

IPC: A61F2/16

Abstract: A multi-part intraocular lens (IOL) with an interchangeable optic seated on a base and secured by a locking mechanism. The optic comprises an anterior surface with a diameter greater than a diameter of a ring of the base. The posterior side of the optic has a posterior surface, a transition region for contact with the base, and sidewalls and tabs radially outward of the transition region. The sidewalls and tabs overlap at least a portion of the ring to reduce or even prevent decentration and tilt of the optic. Each tab has a lateral extension for coupling to the base.

公开(公告)号：US20230120238A1

公开(公告)日：2023-04-20

申请号：US18068877

申请日：2022-12-20

Applicant: Alcon Inc.

Inventor： Kamal K. Das ,  William Jacob Spenner Dolla

IPC: A61F2/16

Abstract: A multi-part intraocular lens (IOL) with an interchangeable optic seated on a base and secured by a locking mechanism. The optic comprises an anterior surface with a diameter greater than a diameter of a ring of the base. The posterior side of the optic has a posterior surface, a transition region for contact with the base, and sidewalls and tabs radially outward of the transition region. The sidewalls and tabs overlap at least a portion of the ring to reduce or even prevent decentration and tilt of the optic. Each tab has a lateral extension for coupling to the base.

公开(公告)号：US11607308B2

公开(公告)日：2023-03-21

申请号：US16376064

申请日：2019-04-05

Applicant: ALCON INC.

Inventor： Kamal K. Das ,  Jian Liu

IPC: A61F2/16

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.

公开(公告)号：US20220346941A1

公开(公告)日：2022-11-03

申请号：US17661175

申请日：2022-04-28

Applicant: Alcon Inc.

Inventor： Kamal K. Das ,  David L. Jinkerson ,  William Jacob Spenner Dolla

IPC: A61F2/16

Abstract: An ophthalmic lens may comprise a posterior optic surface, an anterior optic surface, and an optic edge between the posterior optic surface and the anterior optic surface, wherein the optic edge forms a substantially circular perimeter having a thickness that varies periodically. The thickness of the optic edge may vary periodically for at least two cycles. Additionally, or alternatively, the ophthalmic lens may comprise an optic skirt coupled to the optic edge. The optic skirt can be configured to inhibit transmission of light around the optic edge.

公开(公告)号：US20220192820A1

公开(公告)日：2022-06-23

申请号：US17546987

申请日：2021-12-09

Applicant: Alcon Inc.

Inventor： James M. Scott ,  Kamal K. Das

IPC: A61F2/16 ,  A61F9/007

Abstract: An ophthalmic lens may comprise a posterior optic surface and an anterior optic surface, which may comprise a central optic, a peripheral optic, and a capsule rim separating the central optic and the peripheral optic. An optic edge may couple the posterior optic surface to the peripheral optic. The capsule rim may be symmetric or asymmetric in various embodiments. In more particular embodiments, the capsule rim may form a surface at an angle of at least ninety (90) degrees to the peripheral optic. In some embodiments, the central optic may comprise an optic axis, and the capsule rim may form a surface that is substantially parallel to the optic axis.

公开(公告)号：US20240207043A1

公开(公告)日：2024-06-27

申请号：US18527510

申请日：2023-12-04

Applicant: Alcon Inc.

Inventor： William Jacob Spenner Dolla ,  Kamal K. Das

IPC: A61F2/16

CPC classification number: A61F2/1648 ,  A61F2/1629 ,  A61F2002/169

Abstract: A modular optical implant, which may comprise a base ring and an optic with features that enable assembly, alignment, and stabilization of adjunct optics. The optic may have features that interface with other optics and improve optical outcomes through rigid alignment of adjunct optics, mitigation of anterior capsule opacification, in vivo identification of optical features while implanting the lens, and reduction of refractive error. More generally, some embodiments may be an optical implant, which may comprise a posterior optic surface, an anterior optic surface, an optic edge between the posterior optic surface and the anterior optic surface, a locking tab coupled to the posterior optic surface, and an optic stabilizer coupled to the anterior optic surface.

公开(公告)号：US20220382075A1

公开(公告)日：2022-12-01

申请号：US17804119

申请日：2022-05-26

Applicant: Alcon Inc.

Inventor： Behzad Bordbar ,  Kamal K. Das

IPC: G02C7/04

Abstract: Certain embodiments described herein are directed to a multifocal ophthalmic lens including a base lens having a base curvature corresponding to a base power, and a diffractive structure comprising a central zone and a plurality of annular echelettes formed on a first surface of the base lens. A radial spacing of each of the plurality of annular echelettes is constant throughout the diffractive structure.

公开(公告)号：US20190307555A1

公开(公告)日：2019-10-10

申请号：US16376045

申请日：2019-04-05

Applicant: Alcon Inc.

Inventor： Kamal K. Das ,  Jian Liu

IPC: A61F2/16

Abstract: An intraocular lens includes an optic having an anterior optic surface, a posterior optic surface, and an optic edge extending between the anterior optic surface and a posterior optic surface. The optic edge includes a convex portion extending from a periphery of the anterior optic surface and a flat portion extending from a periphery of the posterior optic surface such that a corner edge is formed between the optic edge and the posterior optic surface. The flat portion intersecting the convex portion to form the optic edge. Such an optic edge may eliminate glare or other undesired effects that adversely impact quality of vision.