METHOD FOR PROVIDING CONTROL DATA FOR A LASER OF A TREATMENT APPARATUS

    公开(公告)号:US20230372154A1

    公开(公告)日:2023-11-23

    申请号:US18315286

    申请日:2023-05-10

    IPC分类号: A61F9/008 A61D1/00

    摘要: An apparatus and method are disclosed for providing control data for a laser of a treatment apparatus for the correction of a cornea. The method includes determining a look-up table for preset corneal parameters by a corneal deformation model, wherein the cornea can be modeled in deformed and non-deformed states by the corneal deformation model. A value of at least one preset corneal parameter in the non-deformed state of the cornea is varied and an effect of this variation on values of the corneal parameters in the deformed state of the cornea is ascertained for determining the look-up table. The method further includes ascertaining a corneal value to be achieved from predetermined examination data, determining by the look-up table a deformation-corrected corneal value to be achieved for compensating for the deformation of the cornea, and providing control data, which uses the deformation-corrected corneal value for correcting the cornea.

    Method for providing control data for an eye surgical laser of a treatment apparatus

    公开(公告)号:US11819459B2

    公开(公告)日:2023-11-21

    申请号:US17487198

    申请日:2021-09-28

    IPC分类号: A61F9/008

    摘要: A method for providing control data for an eye surgical laser of a treatment apparatus for removing tissue is disclosed. The method includes utilizing a control device for determining a corneal geometry and an ocular wavefront of a human or animal eye from predetermined examination data. A corneal wavefront is then determined from the corneal geometry using a physical model, and an internal wavefront is calculated from a difference between the ocular wavefront and the corneal wavefront. A wavefront to be achieved is calculated from a difference of a preset target wavefront and the calculated internal wavefront. A target corneal geometry is determined from the wavefront to be achieved by the physical model, and a tissue geometry to be removed is calculated from a difference of the corneal geometry and the target corneal geometry, and control data for controlling the eye surgical laser is provided.

    PHOTOACTIVATION SYSTEMS AND METHODS FOR CORNEAL CROSS-LINKING TREATMENTS

    公开(公告)号:US20230346601A1

    公开(公告)日:2023-11-02

    申请号:US18313078

    申请日:2023-05-05

    申请人: Avedro, Inc.

    IPC分类号: A61F9/008

    摘要: A system for treating an eye includes a laser light source providing photoactivating light. The system includes a scanning system to receive the photoactivating light as a laser beam and to move the laser beam over a cornea treated with a cross-linking agent. The system includes a controller that provides control signal(s) to programmatically control the laser light source and the scanning system. The control signal(s) cause the laser beam to visit region(s) of the cornea more than once according to a scan pattern and expose the region(s) to the photoactivating light. The photoactivating light causes the cross-linking agent in the exposed region(s) to react with oxygen to generate cross-linking activity in the exposed region(s). The scan pattern causes a predetermined period of time to pass between visits by the laser beam to the exposed region(s), the predetermined period of time allowing oxygen in the exposed region(s) to replenish.

    SINGLE-FIBER ILLUMINATED LASER PROBE WITH ADJUSTABLE COLOR

    公开(公告)号:US20230346599A1

    公开(公告)日:2023-11-02

    申请号:US18303058

    申请日:2023-04-19

    申请人: Alcon Inc.

    IPC分类号: A61F9/008

    CPC分类号: A61F9/008

    摘要: Embodiments of the present disclosure relate to improved surgical laser systems with single-core single-optical fiber-illuminated laser probes, which are configured to propagate both treatment laser beams and illumination light beams. More particularly, embodiments of the present disclosure provide surgical laser systems with color adjustability of illumination light, as well as improved laser probe stiffness.