SYSTEM AND METHOD FOR MEASURING AND CORRECTING ASTIGMATISM USING LASER GENERATED CORNEAL INCISIONS

    公开(公告)号:US20170347877A1

    公开(公告)日:2017-12-07

    申请号:US15687502

    申请日:2017-08-27

    申请人: Lensar, Inc.

    发明人: Rudolph W. Frey

    IPC分类号: A61B3/103 A61B3/107 A61F9/008

    摘要: A laser system that includes a laser source emitting a laser beam along an axis and a keratometer. The keratometer includes a first set of individual light sources that are equally spaced from one another along a first ring and that direct a first light toward an eye and a second set of individual light sources that are equally spaced from another along a second ring and direct a second light toward the eye, wherein the first ring and said second ring are co-planar and concentric with one another about the axis. The laser system includes a telecentric lens that receives the first light and second light reflected off of the eye and a detector that receives light from the telecentric lens and forms an image. The laser system also includes a processor that receives signals from said detector representative of the image and determines an astigmatism axis of the eye based on the signals.

    Method and system for removal and replacement of lens material from the lens of an eye
    34.
    发明授权
    Method and system for removal and replacement of lens material from the lens of an eye 有权
    从眼睛镜片中取出和更换镜片材料的方法和系统

    公开(公告)号:US08480659B2

    公开(公告)日:2013-07-09

    申请号:US12509412

    申请日:2009-07-24

    IPC分类号: A61B18/18

    摘要: There is provided a system, apparatus and methods for developing laser systems that can create a precise predetermined capsulotomy. The systems, apparatus and methods further provide laser systems that reduce the patient-to-patient variability and doctor-to-doctor variability associated with hand held apparatus for performing capsulorhexis and capsulotomies. There is further provided a precise predetermined shot pattern and shaped capsulotomy that is based at least in part on the shape of an IOL and in particular an accommodating IOL.

    摘要翻译: 提供了一种用于开发激光系统的系统,装置和方法,其可以产生精确的预定囊切术。 系统,装置和方法进一步提供激光系统,其减少与用于进行撕囊术和囊切除术的手持装置相关的患者变异性和医生变异性。 还提供了至少部分地基于IOL的形状,特别是容纳IOL的精确的预定的射击模式和形状的囊切开术。

    Iris registration method and system

    公开(公告)号:US12070419B2

    公开(公告)日:2024-08-27

    申请号:US17373375

    申请日:2021-07-12

    申请人: Lensar, Inc.

    发明人: Dustin Morley

    IPC分类号: A61F9/008

    摘要: A method that includes illuminating an eye with light at a first time and a second time and generating a first image of the eye based on the light that illuminates the eye at the first time. The method includes generating a second image of the eye based on the light that illuminates the eye at the second time. The method further includes positioning a laser source relative to the eye, wherein the laser source generates a therapeutic laser beam to be directed to the eye, wherein the first time is just prior to the therapeutic laser beam being directed to the eye and the second time is prior to the first time. The method further includes correcting orientation of the laser source relative to the eye based on a correlation function that is defined for the first and second images of the eye.

    SYSTEM AND METHOD FOR MEASURING TILT IN THE CRYSTALLINE LENS FOR LASER PHACO FRAGMENTATION

    公开(公告)号:US20220330818A1

    公开(公告)日:2022-10-20

    申请号:US17537219

    申请日:2021-11-29

    申请人: Lensar, Inc.

    摘要: A method of generating three dimensional shapes for a cornea and lens of an eye, the method including illuminating an eye with multiple sections of light and obtaining multiple sectional images of said eye based on said multiple sections of light. For each one of the obtained multiple sectional images, the following processes are performed: a) automatically identifying arcs, in two-dimensional space, corresponding to anterior and posterior corneal and lens surfaces of the eye by image analysis and curve fitting of the one of the obtained multiple sectional images; and b) determining an intersection of lines ray traced back from the identified arcs in two-dimensional space with a known position of a section of space containing the section of light that generated the one of the obtained multiple sectional images, wherein the determined intersection defines a three-dimensional arc curve. The method further including reconstructing three-dimensional shapes of the anterior and posterior cornea surfaces and the anterior and posterior lens surfaces based on fitting the three-dimensional arc curve to a three-dimensional shape.