公开(公告)号：US20230130142A1

公开(公告)日：2023-04-27

申请号：US18145020

申请日：2022-12-22

Applicant: AMO Development, LLC

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

IPC: A61F9/008 ,  A61L27/16

Abstract: Methods and related apparatus for real-time process monitoring during laser-based refractive index modification of an intraocular lens. During in situ laser treatment of the IOL to modify the refractive index of the IOL material, a signal from the IOL is measured to determine the processing effect of the refractive index modification, and based on the determination, to adjust the laser system parameters to achieve intended processing result. The signal measured from the IOL may be a fluorescent signal induced by the treatment laser, a fluorescent signal induced by an external illumination source, a temporary photodarkening effect, a color change, or a refractive index change directly measured by phase stabilized OCT.

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：US20210361485A1

公开(公告)日：2021-11-25

申请号：US17444552

申请日：2021-08-05

Applicant: AMO Development, LLC

Inventor： Georg Schuele ,  Dan Andersen ,  Alexander Vankov ,  Phillip H. Gooding

IPC: A61F9/008

Abstract: A system for laser ophthalmic surgery includes: a single laser source, under the operative control of a controller, configured to alternatively deliver a first treatment laser beam and a second treatment laser beam. The first treatment laser beam has a pulse energy of 10 to 500 μJ. The second pulsed laser beam has a second pulse energy of about 0.1 to 10 μJ, lower than the first treatment laser beam. An optical system focuses the first treatment laser beam to a first focal spot and directs the first focal spot in a first treatment pattern into a first intraocular target. The optical system also focuses the second treatment laser beam to a second focal spot and direct the second focal spot in a second treatment pattern into a second intraocular target. The first intraocular target and second intraocular target are different.

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.