公开(公告)号：US11331220B2

公开(公告)日：2022-05-17

申请号：US14885824

申请日：2015-10-16

Applicant: AMO DEVELOPMENT, LLC

Inventor： Javier G. Gonzalez ,  David A. Dewey ,  Noah Bareket ,  Michael A. Campos ,  Yu-tai Ray Chen ,  David D. Scott

IPC: A61F9/009 ,  A61B5/00 ,  A61G15/02 ,  A61F9/008 ,  A61F9/007 ,  A61F9/00

Abstract: A laser eye surgery system produces a treatment beam that includes a plurality of laser pulses. An optical coherence tomography (OCT) subsystem produces a source beam used to locate one or more structures of an eye. The OCT subsystem is used to sense the distance between a camera objective on the underside of the laser eye surgery system and the patient's eye. Control electronics compare the sensed distance with a pre-determined target distance, and reposition a movable patient support toward or away the camera objective until the sensed distance is at the pre-determined target distance. A subsequent measurement dependent upon the spacing between the camera objective and the patient's eye is performed, such as determining the astigmatic axis by observing the reflection of a plurality of point source LEDs arranged in concentric rings off the eye.

公开(公告)号：US20220061983A1

公开(公告)日：2022-03-03

申请号：US17057687

申请日：2020-04-09

Applicant: AMO Development, LLC

Inventor： Georg Schuele ,  David A. Dewey ,  Jenny Wang ,  Richard Hofer ,  Alexander Vankov

IPC: A61F2/16 ,  A61F9/008 ,  B29D11/02

Abstract: A laser scanning method for forming a Fresnel type gradient index lens in an intraocular lens IOL. The radial profile of the desired optical pathlength (OPL) difference to be achieved in the IOL has multiple zones, each zone ramping from unchanged OPL to one wave, and stepping down to zero. To form a zone of a predefined OPL difference profile, the laser beam is scanned in multiple passes; in each pass, the laser beam is scanned in concentric circles of varying radii covering all or a part of the zone, with laser energy ramping up (along the radius) to a maximum allowed energy and staying at that energy. The ramp up region, which is dependent on the predefined OPL difference profile and the maximum allowed energy, is short, and most part of the pass is scanned at the maximum allowed energy.

公开(公告)号：US20210220170A1

公开(公告)日：2021-07-22

申请号：US17220877

申请日：2021-04-01

Applicant: AMO Development, LLC

Inventor： Georg Schuele ,  David A. Dewey ,  Javier G. Gonzalez ,  Alexander Vankov

IPC: A61F9/008 ,  A61B3/14 ,  A61B34/00

Abstract: A laser surgical method for performing a corneal incision while maintaining iris exposure below a predetermined exposure limit includes: determining an initial iris exposure based on an initial treatment scan, determining whether the initial iris exposure is less than the predetermined exposure limit; generating a revised treatment scan comprising one or more treatment scan modifying elements when the initial iris exposure is greater than the predetermined exposure limit, and scanning the focal zone of a pulsed laser beam according to the revised treatment scan, thereby performing the corneal incision, wherein the one or more treatment scan modifying elements causes the iris exposure to be smaller than the predetermined exposure limit.

公开(公告)号：US11000413B2

公开(公告)日：2021-05-11

申请号：US16278029

申请日：2019-02-15

Applicant: AMO Development, LLC

Inventor： Michael J. Simoneau ,  David A. Dewey ,  Javier G. Gonzalez

IPC: A61F9/008 ,  A61B3/10

Abstract: In an ophthalmic laser surgical system, a real-time optical coherence tomography (OCT) measurement method acquires OCT data during laser treatment. The treatment laser beam and OCT sample beam are generated simultaneously, and the optical delivery system scans them simultaneously in the eye tissue, where the focus of the treatment laser beam and the focus of the OCT beam coincide with each other in space. While both beams simultaneously scanned in the eye tissue, the OCT device detects returned OCT light from the sample during a data acquisition period, and generates an OCT A-scan based on the detected OCT light. Based on the A-scan, a controller determines a structure of the eye in a depth direction relative to the focus of the OCT beam, and controls the operations ophthalmic laser surgical system accordingly. One exemplary application is the formation of an arcuate corneal incision in cataract surgery.