CORNEAL TOPOGRAPHY MEASUREMENT AND ALIGNMENT OF CORNEAL SURGICAL PROCEDURES

    公开(公告)号:US20200085622A1

    公开(公告)日:2020-03-19

    申请号:US16686059

    申请日:2019-11-15

    Abstract: Methods and apparatus are configures to measure an eye without contacting the eye with a patient interface, and these measurements are used to determine alignment and placement of the incisions when the patient interface contacts the eye. The pre-contact locations of one or more structures of the eye can be used to determine corresponding post-contact locations of the one or more optical structures of the eye when the patient interface has contacted the eye, such that the laser incisions are placed at locations that promote normal vision of the eye. The incisions are positioned in relation to the pre-contact optical structures of the eye, such as an astigmatic treatment axis, nodal points of the eye, and visual axis of the eye.

    CONFOCAL LASER EYE SURGERY SYSTEM
    12.
    发明申请

    公开(公告)号:US20190076017A1

    公开(公告)日:2019-03-14

    申请号:US16188119

    申请日:2018-11-12

    Abstract: A laser surgery system includes a light source, an eye interface device, a scanning assembly, a confocal detection assembly and preferably a confocal bypass assembly. The light source generates an electromagnetic beam. The scanning assembly scans a focal point of the electromagnetic beam to different locations within the eye. An optical path propagates the electromagnetic beam from a light source to the focal point, and also propagates a portion of the electromagnetic beam reflected from the focal point location back along at least a portion of the optical path. The optical path includes an optical element associated with a confocal detection assembly that diverts a portion of the reflected electromagnetic radiation to a sensor. The sensor generates an intensity signal indicative of intensity the electromagnetic beam reflected from the focal point location. The confocal bypass assembly reversibly diverts the electromagnetic beam along a diversion optical path around the optical element.

    LASER EYE SURGERY SYSTEM CALIBRATION
    14.
    发明申请
    LASER EYE SURGERY SYSTEM CALIBRATION 审中-公开
    激光眼手术系统校准

    公开(公告)号:US20140128853A1

    公开(公告)日:2014-05-08

    申请号:US14069703

    申请日:2013-11-01

    Abstract: The amount of energy to provide optical breakdown can be determined based on mapped optical breakdown thresholds of the treatment volume, and the laser energy can be adjusted in response to the mapped breakdown thresholds. The mapping of threshold energies can be combined with depth and lateral calibration in order to determine the location of optical breakdown along the laser beam path for an amount of energy determined based on the mapping. The mapping can be used with look up tables to determine mapped locations from one reference system to another reference system.

    Abstract translation: 可以基于处理体积的映射光学击穿阈值来确定提供光学击穿的能量的量,并且可以响应于映射的击穿阈值来调整激光能量。 阈值能量的映射可以与深度和横向校准相结合,以便根据映射确定一定量的能量沿着激光束路径确定光学击穿的位置。 映射可以与查找表一起使用,以确定从一个参考系统到另一个参考系统的映射位置。

    FULL DEPTH LASER OPHTHALMIC SURGICAL SYSTEM, METHODS OF CALIBRATING THE SURGICAL SYSTEM AND TREATMENT METHODS USING THE SAME

    公开(公告)号:US20200038241A1

    公开(公告)日:2020-02-06

    申请号:US16053724

    申请日:2018-08-02

    Abstract: A full depth ophthalmic surgical system includes a femtosecond laser source and an optical coherence tomographer. The system is capable of performing surgical procedures along the entire length of the eye from the cornea to the retina. In one embodiment, the system uses a removeable focal point extension assembly to extend the reach of the focal point location of the laser beam to the vitreous humor of the eye. In another embodiment, the optical system of the ophthalmic surgical system is optimized to focus the laser beam and imaging light in the vitreous humor of the eye. For procedures performed posterior to the lens, a method for calibrating the full depth ophthalmic surgical system uses the focal zone of the optical coherence tomographer beam as a proxy for the focal zone of the femtosecond laser source to. The system can be used to perform treatment in the vitreous humor, including treating floaters and liquification of the vitreous humor.

    METHOD AND SYSTEM FOR MODIFYING EYE TISSUE AND INTRAOCULAR LENSES
    17.
    发明申请
    METHOD AND SYSTEM FOR MODIFYING EYE TISSUE AND INTRAOCULAR LENSES 审中-公开
    用于修饰眼睛组织和眼科镜片的方法和系统

    公开(公告)号:US20150335477A1

    公开(公告)日:2015-11-26

    申请号:US14817154

    申请日:2015-08-03

    Abstract: A system for ophthalmic surgery includes a laser source configured to deliver an ultraviolet laser beam comprising laser pulses having a wavelength between 320 nm and 370 nm to photodecompose one or more intraocular targets within the eye with chromophore absorbance. The pulse energy, the pulse duration, and the focal spot are such that an irradiance at the focal spot is sufficient to photodecompose the one or more intraocular targets without exceeding a threshold of formation of a plasma and an associated cavitation event. An optical system operatively coupled to the laser source and configured to focus the ultraviolet laser beam to a focal spot and direct the focal spot in a pattern into the one or more intraocular targets. The optical system focuses the laser beam at a numerical aperture that provides for the focal spot to be scanned over a scan range of 6 mm to 10 mm.

    Abstract translation: 一种用于眼科手术的系统包括激光源,其被配置为递送紫外激光束,该紫外激光束包括波长在320nm和370nm之间的激光脉冲,以使发色团吸光度光眼组合在眼内的一个或多个眼内靶。 脉冲能量,脉冲持续时间和焦点使得焦点处的辐照度足以在不超过形成等离子体的阈值和相关联的空化事件的情况下对一个或多个眼内靶标进行光学分解。 一种光学系统,其可操作地耦合到所述激光源并且被配置为将所述紫外激光束聚焦到焦点并将所述焦斑以图案引导到所述一个或多个眼内靶中。 光学系统将激光束聚焦在数值孔径上,该数值孔径可使焦斑在6毫米至10毫米的扫描范围内进行扫描。

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