System and method for nomogram-based refractive laser surgery

    公开(公告)号:US11883328B2

    公开(公告)日:2024-01-30

    申请号:US16426497

    申请日:2019-05-30

    Applicant: ALCON INC.

    Abstract: A surgical system corrects a surgical parameter based on a nomogram specific for a refractive laser surgery system to provide a nomogram-based corrected surgical parameter; stores the surgical parameter and the nomogram-based corrected surgical parameter as data for a patient or for one or both eyes of the patient; and compares the surgical parameter and nomogram-based corrected surgical parameter to generate a graphical representation of the surgical parameter, a target outcome parameter associated with the surgical parameter, or both, and the nomogram-based corrected surgical parameter, to generate a warning based on a comparison of the nomogram-based corrected surgical parameter to the surgical parameter or an absolute value, or both.

    Systems and processes for inserting an intraocular lens

    公开(公告)号:US11883278B2

    公开(公告)日:2024-01-30

    申请号:US16042062

    申请日:2018-07-23

    Applicant: Alcon Inc.

    Inventor: Yinghui Wu

    Abstract: Various systems and techniques for inserting an intraocular lens are disclosed. In particular implementations, a system and a technique for inserting an intraocular lens may include the ability to move, in response to a force being applied in a first direction along a longitudinal axis, a first plunger tip along the longitudinal axis and into a delivery cartridge to fold an intraocular lens and move in a second direction along the longitudinal axis in response to the applied force being reduced. The system and the technique may also include the ability to engage a second plunger tip and move, in response to a force being applied in the first direction along the longitudinal axis, the second plunger tip along the longitudinal axis and into the delivery cartridge to insert the intraocular lens.

    MULTIFOCAL LENS HAVING REDUCED VISUAL DISTURBANCES

    公开(公告)号:US20240024094A1

    公开(公告)日:2024-01-25

    申请号:US18479314

    申请日:2023-10-02

    Applicant: Alcon Inc.

    Abstract: A method and system provide an ophthalmic device. The ophthalmic device includes an ophthalmic lens having an anterior surface, a posterior surface, at least one diffractive structure and at least one base curvature. The at least one diffractive structure for provides a first spherical aberration for a first focus corresponding to at least a first focal length. The at least one base curvature provides a second spherical aberration for at least a second focus corresponding to at least a second focal length. The first spherical aberration and the second spherical aberration are provided such that the first focus has a first focus spherical aberration and the second focus has a second focus spherical aberration. The first focus spherical aberration is opposite in sign to the second focus spherical aberration.

    Bernoulli gripper for intraocular and contact lenses

    公开(公告)号:US11864992B2

    公开(公告)日:2024-01-09

    申请号:US17651493

    申请日:2022-02-17

    Applicant: Alcon Inc.

    CPC classification number: A61F2/1664 A61F2/16 A61F9/0061 A61F2002/1681

    Abstract: A Bernoulli gripper for ophthalmic lenses includes a gripper body with a first cavity corresponding in shape to an optic zone of an ophthalmic lens and a first channel formed within the gripper body. The first channel penetrates the first cavity at one end and includes a first port in the gripper body at another end of the first channel. The first channel is enabled to supply a fluid medium from the first port to the first cavity at a first velocity such that the ophthalmic lens positioned with the optic zone in proximity to the first cavity is subject to a first pressure force against the first cavity by the Bernoulli effect.

    Stereoscopic imaging platform with target locking automatic focusing mode

    公开(公告)号:US11863882B2

    公开(公告)日:2024-01-02

    申请号:US17684810

    申请日:2022-03-02

    Applicant: ALCON INC.

    Abstract: A stereoscopic imaging platform includes a stereoscopic camera configured to record left and right images of a target site. A robotic arm is operatively connected to the stereoscopic camera, the robotic arm being adapted to selectively move the stereoscopic camera relative to the target. The stereoscopic camera includes a lens assembly having at least one lens and defining a working distance. The lens assembly has at least one focus motor adapted to move the at least one lens to selectively vary the working distance. A controller is adapted to selectively execute one or more automatic focusing modes for the stereoscopic camera. The controller has a processor and tangible, non-transitory memory on which instructions are recorded. The automatic focusing modes include a target locking mode. The target locking mode is adapted to maintain a focus of the at least one stereoscopic image while the robotic arm is moving the stereoscopic camera.

    TECHNIQUES FOR PERFORMING A SAFETY TEST OF A LASER DIODE OPHTHALMIC SURGICAL APPARATUS

    公开(公告)号:US20230414413A1

    公开(公告)日:2023-12-28

    申请号:US18329929

    申请日:2023-06-06

    Applicant: Alcon Inc.

    CPC classification number: A61F9/00823 A61F9/00825 A61B3/1015

    Abstract: Aspects of the present disclosure provide techniques for performing a safety test of a laser diode associated with an ophthalmic surgical apparatus. An example method determining a measured slope efficiency of the laser diode based on a plurality of different current levels applied to an input of the laser diode and a plurality of different output power levels associated with the laser diode, determining an expected slope efficiency of the laser diode based on a measured operating temperature of the ophthalmic surgical apparatus, determining a result of the safety test of the laser diode based on the measured slope efficiency of the laser diode and the expected slope efficiency for the laser diode, and outputting an electrical signal indicating a result of the safety test of the laser diode.

    SYSTEM AND METHOD FOR NOMOGRAM-BASED REFRACTIVE LASER SURGERY

    公开(公告)号:US20230404804A1

    公开(公告)日:2023-12-21

    申请号:US18461358

    申请日:2023-09-05

    Applicant: ALCON INC.

    Abstract: The present disclosure provides a refractive laser surgery system including a processor having access to memory media storing instructions or sets of instructions executable by the processor to identify a surgical parameter; correct the surgical parameter based on a nomogram specific for the refractive laser surgery system to provide a nomogram-based corrected surgical parameter; store the surgical parameter and the nomogram-based corrected surgical parameter in the memory media as data for a patient or for one or both eyes of the patient; and compare the surgical parameter and nomogram-based corrected surgical parameter to generate a graphical representation of the surgical parameter, a target outcome parameter associated with the surgical parameter, or both, and the nomogram-based corrected surgical parameter, to generate a warning based on a comparison of the nomogram-based corrected surgical parameter to the surgical parameter or an absolute value, or both. Methods of using the system are also provided.

    Pad transfer printing method for making colored contact lenses

    公开(公告)号:US11840035B2

    公开(公告)日:2023-12-12

    申请号:US18165653

    申请日:2023-02-07

    Applicant: Alcon Inc.

    CPC classification number: B29D11/00903 C08L83/04 G02B1/043

    Abstract: The invention relates to a pad printing instrument comprising an ink supply system capable of control the temperature, viscosity and colorant concentration of an ink in an ink cup. Such controls are achieved by continuously adding and mixing a cold ink having a composition identical to the ink in the ink cup but having a lower temperature. The continuous addition of a small amount of a cold ink into the ink cup could compensate heat generated by the friction between the ink cup and a cliché and could minimize the evaporation of a diluent in the ink and change in the concentration of colorants in the ink and ink viscosity. The invention also relates to use of a pad printing instrument comprising an ink supply system of the invention for producing colored hydrogel or silicone hydrogel contact lenses.

    METHOD FOR MAKING EMBEDDED HYDROGEL CONTACT LENSES

    公开(公告)号:US20230382065A1

    公开(公告)日:2023-11-30

    申请号:US18322651

    申请日:2023-05-24

    Applicant: Alcon Inc.

    CPC classification number: B29D11/00134 B29D11/00442 B29D11/0048

    Abstract: A method for producing embedded hydrogel contact lenses comprises at least the following steps: obtaining an insert made of a crosslinked polymeric material comprising repeating units of a free-radical photoinitiator; placing the insert in a female lens mold half; dosing an amount of a lens-forming composition to immerse the insert in the female lens mold half; closing tightly a male lens mold half onto the top of the female lens mold half halves to form a molding assembly; actinically curing both the lens-forming composition in the molding assembly to form an embedded hydrogel lens precursor which comprises a bulk hydrogel material formed the lens-forming composition and the insert that is embedded therein and covalently linked to the bulk hydrogel material.

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