System and method of determining incision depths in eyes

    公开(公告)号:US11759359B2

    公开(公告)日:2023-09-19

    申请号:US17119863

    申请日:2020-12-11

    申请人: ALCON INC.

    IPC分类号: A61B3/10 A61F9/008

    摘要: The disclosure provides a system that may: determine first multiple focal point distances associated with respective multiple positions of a plane orthogonal to a laser beam; determine second multiple focal point distances associated with the respective multiple positions via for each position of the multiple positions: determine multiple intensity values associated with respective multiple interim focal point distances, each interim focal point distance greater than each focal point distance of the first multiple focal point distances associated with the position; determine an interim focal point distance respectively associated with a maximum intensity value; and determine a focal point distance as the interim focal point distance; and determine a depth of at least one incision in an eye based at least on differences between each of the second multiple focal point distances and each respective one of the first multiple focal point distances.

    Surgical system and procedure for precise intraocular pressure reduction

    公开(公告)号:US11654053B2

    公开(公告)日:2023-05-23

    申请号:US17019053

    申请日:2020-09-11

    申请人: ViaLase, Inc.

    发明人: Ferenc Raksi

    IPC分类号: A61F9/008 A61B3/16 A61F9/009

    摘要: An initial treatment pattern defining an initial volume of ocular tissue to be modified for treating glaucoma is designed. An initial laser treatment is delivered by scanning a laser beam across ocular tissue at an initial placement in the eye in accordance with the initial treatment pattern to thereby photo disrupt the initial volume of ocular tissue. A postoperative measure of intraocular pressure (IOP) is evaluated relative to an IOP criterion to determine if the treatment was successful. If the treatment was not successful, meaning the IOP criterion was not satisfied, then a subsequent treatment pattern that defines a subsequent volume of ocular tissue to be modified, and/or a subsequent placement in the eye is determined. A subsequent laser treatment is delivered by scanning a laser beam across ocular tissue at the subsequent placement within the eye in accordance with the subsequent treatment pattern to thereby photo disrupt the subsequent volume of ocular tissue.