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    Apparatus for modifying the surface of the eye and method of controlling the apparatus
    5.
    发明公开
    Apparatus for modifying the surface of the eye and method of controlling the apparatus 失效
    Vorrichtung zur Formung der Cornea

    公开(公告)号：EP0860155A2

    公开(公告)日：1998-08-26

    申请号：EP98102549.7

    申请日：1993-09-30

    申请人： CHIRON Technolas GmbH Ophthalmologische Systeme

    发明人： CHIRON Technolas GmbH Ophthalmologische Systeme

    IPC分类号： A61F9/00

    CPC分类号： A61F9/008 ,  A61B2017/00061 ,  A61F9/00804 ,  A61F9/00806 ,  A61F9/00817 ,  A61F2009/00872 ,  A61F2009/00882

    摘要： A apparatus and method for controlling an apparatus for removing tissue from the eye performs various types of corrections using a relatively large beam, but oscillating, or dithering, that being to prevent reinforcing ridges from being formed during the tissue removal process. Further, various types of correction, such as hyperopia and astigmatism correction, are performed using a large beam that is scanned over the area to be ablated using overlapping shots. Further, the epithelium in the area to be treated is removed using an infrared fluorescent dye to dye the epithelium, and then observing the fluorescent patterns from the epithelium area to be removed. Once a certain area is no longer fluorescent after laser shots, smaller shots are then applied, selectively removing the epithelium from the remaining regions. Again, the fluorescence patterns are observed, and the process is repeated until no epithelium remains. At this point, all of the epithelium is removed, and further a map is created of the initial epithelial thickness at each point in the area from which the epithelium was removed.

    摘要翻译： 用于控制从眼睛去除组织的装置的装置和方法使用相对大的光束进行各种类型的校正，但是振荡或抖动，以防止在组织去除过程期间形成增强脊。 此外，使用在使用重叠拍摄的要消融的区域上扫描的大束来执行各种类型的校正，例如远视和散光校正。 此外，使用红外荧光染料除去待处理区域中的上皮以染色上皮，然后观察去除上皮区域的荧光图案。 一旦激光照射后某一区域不再荧光，则施加较小的照射，从其余区域选择性地去除上皮。 再次，观察荧光图案，重复该过程，直到没有上皮残留。 此时，除去所有的上皮细胞，并且进一步地，在除去上皮的区域的每个点处产生初始上皮厚度的图。

    APPARATUS FOR OPHTHALMIC REFRACTIVE CORRECTION
    8.
    发明授权
    APPARATUS FOR OPHTHALMIC REFRACTIVE CORRECTION 有权
    设备对于眼，屈光矫正

    公开(公告)号：EP1221921B1

    公开(公告)日：2006-01-04

    申请号：EP00972834.6

    申请日：2000-10-20

    申请人： Technolas GmbH Ophthalmologische Systeme

    发明人： HOHLA, Kristian ,  YOUSSEFI, Gerhard ,  TOENNIES, Roland, Günter, Norbert

    IPC分类号： A61F9/01

    CPC分类号： A61F9/008 ,  A61F9/00804 ,  A61F9/00817 ,  A61F2009/00846 ,  A61F2009/00855 ,  A61F2009/00872 ,  A61F2009/0088 ,  A61F2009/00882

    摘要： An aperture card is provided for insertion into a laser refractive ablation system for use in laser ablating the cornea. The aperture card is designed for single surgical use for surgical precautionary considerations and to achieve the highest quality ablations, in addition to reproducibility. The aperture card is loaded into the laser refractive ablation system in a path between the laser system and the eye. The aperture card is precisely located by positioning means and ablative lasing action is inhibited if the card is not positioned within tolerance. Alternatively, the laser system can determine the position of the aperture card and adjust a computed ablation profile or otherwise adjust the optical system to adapt for any misalignment of the apertures in the aperture card. The card contains a 'soft spot' aperture capable of shaping a spatial intensity distribution with a unique profile. The profile has a substantially flat top while the sides of the profile slope until an ablation intensity threshold is reached, at which point the sides become substantially vertical. The card can contain more than one soft spot aperture along with a 'hard spot' aperture that creates a square-shaped profile used for testing fluence. Each soft spot aperture is formed by a central aperture and a plurality of holes of different sizes surrounding the central aperture and arranged such that the overall diffractive effect produces a soft spot spatial intensity profile compared to the hard, square-sided profile.

    DUAL MODE OPHTHALMIC LASER ABLATION
    9.
    发明授权
    DUAL MODE OPHTHALMIC LASER ABLATION 失效
    双模式OPHTHALMISCHE LASERABLATION

    公开(公告)号：EP1011563B1

    公开(公告)日：2005-11-09

    申请号：EP98922772.3

    申请日：1998-04-24

    申请人： Technolas GmbH Ophthalmologische Systeme

    发明人： HOHLA, Kristian

    IPC分类号： A61F9/007

    CPC分类号： A61F9/008 ,  A61B34/35 ,  A61B2017/306 ,  A61B2018/2025 ,  A61B2090/3945 ,  A61B2218/005 ,  A61F9/00804 ,  A61F2009/00872 ,  A61F2009/00882

    摘要： A dual mode excimer laser eye surgery system is provided. The eye is first treated for primary corneal defects using a large, fixed spot size, and remaining irregularities are removed using a small fixed spot size. The large size allows for faster treatment, and the small size provided for more precision in the treatment of irregular topographies. The system is preferably implemented in a distributed topography environment. For example, a treatment pattern using a large, fixed spot size is provided to doctors based on visual acuity data, such as the degree of dioptric correction needed. The effect of this treatment is then overlaid on a computer against the patient's actual eye topography. The small fixed spot size is used to remove any remaining irregularities yielding a preferred treatment pattern. This combined treatment pattern is then distributed to an excimer laser eye surgery system that performs the large spot size ablation and then the small spot size ablation.

    Wavefront sensor having multi-power beam modes, independent adjustment camera, and accomodation range measurement
    10.
    发明公开
    Wavefront sensor having multi-power beam modes, independent adjustment camera, and accomodation range measurement 有权
    Wellenfrontsensor mit Mehrfachleistungsstrahlmodus，unabhängigerJustierungskamera und Akkommodierungsbereichsmessung

    公开(公告)号：EP1514509A2

    公开(公告)日：2005-03-16

    申请号：EP04026943.3

    申请日：2000-10-20

    申请人： Technolas GmbH Ophthalmologische Systeme

    发明人： Youssefi, Gerhard ,  Sappel, Christoph ,  Polland, Joachim

    IPC分类号： A61B3/103 ,  A61B3/12 ,  G01J9/00

    CPC分类号： A61B3/1015 ,  G01J9/00

    摘要： A technique for determining accommodation range using a wavefront sensor. The technique comprises the steps of determining when the wavefront sensor goes into focus and adjusting the wavefront sensor until the wavefront sensor begins to go out of the focus. The technique further comprises the step of determining the accommodation range as the difference between the focal power of the sensor when the sensor goes into focus and the focal power of the sensor when the sensor begins to go out of the focus.

    摘要翻译： 一种使用波前传感器确定调节范围的技术。 该技术包括以下步骤：确定波前传感器何时进入焦点并调整波前传感器直到波前传感器开始离开焦点。 该技术还包括将传感器聚焦时的传感器焦点与传感器开始离开聚焦时的传感器焦点之间的差异确定为适应范围的步骤。