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1. 发明申请

WO03011121A9 HEIGHT RECONSTRUCTION FROM AXIAL DISTANCE DATA USING AN ELLIPSE ARC-STEP METHOD 审中-公开
标题翻译：使用ELLIPSE ARC-STEP方法从轴距离数据高度重建
公开(公告)号：WO03011121A9
公开(公告)日：2003-04-10
申请号：PCT/US0224014
申请日：2002-07-30
申请人： LASERSIGHT TECH INC
发明人： SMITH MICHAEL J , MARROU LANCE R
IPC分类号： A61B3/107 , A61B3/10
CPC分类号： A61B3/107
摘要： A method is provided for reconstructing the height data from the radial distance data gathered by a corneal measurement device such as a corneal topographer or videokeratometer. The present invention performs the height reconstruction using an algorithm that is more accurate than the prior art. The prior art uses the circle arc-step or midpoint height reconstruction algorithms, while the present invention teaches the ellipse arc-step height reconstruction. This is important because it is now known that the eye surface is better modeled with an ellipsoid approximation than a spherical approximation.
摘要翻译：提供了一种用于从角膜测量装置如角膜地形图或视频角膜计收集的径向距离数据重建高度数据的方法。本发明使用比现有技术更精确的算法来执行高度重建。现有技术使用圆弧或中点高度重建算法，而本发明教导了椭圆弧段高度重建。这是重要的，因为现在已知眼睛表面更好地用椭圆近似而不是球面近似来建模。

2. 发明申请

WO03011176A3 CORRECTING LARGE VISUAL AXIS OFFSET ERRORS 审中-公开
标题翻译：校正大视觉轴偏移错误
公开(公告)号：WO03011176A3
公开(公告)日：2003-07-10
申请号：PCT/US0224016
申请日：2002-07-30
申请人： LASERSIGHT TECH INC
发明人： MARROU LANCE R
IPC分类号： A61B3/00 , A61F9/01
CPC分类号： A61F9/008 , A61B3/00 , A61F2009/00872
摘要： A method is provided to correct visual axis offset errors. Such errors in the visual axis offset are large if they significantly affect the patient's vision. The visual axis offset is the difference between the visual axis and the reference axis, commonly the pupillary axis. Although correcting the visual axis offset error may be most often performed by refractive surgery, the visual axis offset error may also be corrected in spectacles or contacts lenses. A benefit of correcting large visual axis offset errors secondary to patient vision is aesthetic appeal. Significant visual axis correction may require patient training. Although this may not compensate entirely for amblyopic vision, it may alleviate part of the dysfunction. Another benefit of correcting larger visual axis errors is providing the patient with a larger area of better vision within the aperture.
摘要翻译：提供了一种方法来校正视轴偏移误差。视轴偏移中的这些误差如果明显影响患者的视力则会很大。视轴偏移是视轴与参考轴之间的差异，通常是瞳孔轴。尽管校正视轴偏移误差最常由屈光手术进行，但也可以在眼镜或隐形眼镜中校正视轴偏移误差。纠正患者视力继发的大视轴偏移错误的好处是美学吸引力。显着的视轴校正可能需要患者培训。虽然这可能不会完全补偿弱视视力，但可能会减轻部分功能障碍。纠正较大视轴错误的另一个好处是为患者提供更大的视野范围内更好的视力。

3. 发明申请

WO03011111A3 DETERMINING A TARGET OPTICAL ZONE FOR ABALATION BASED ON THE STILES-CRAWFORD EFFECT 审中-公开
标题翻译：基于Scrive-CroWord效应确定目标光学区的消除
公开(公告)号：WO03011111A3
公开(公告)日：2003-07-10
申请号：PCT/US0224013
申请日：2002-07-30
申请人： LASERSIGHT TECH INC
发明人： MARROU LANCE R
IPC分类号： A61B3/11 , A61B19/00 , A61F9/01 , A61B13/00
CPC分类号： A61B3/112 , A61B34/10 , A61F9/00804 , A61F2009/00872 , A61F2009/0088 , A61F2009/00882
摘要： The optimal optical zone for a patient is determined based upon the Stiles-Crawford effect and patient-specific scotopic pupil parameters. This invention is especially useful in refractive surgery where the chosen optical zone is crucial and affects both the depth and volume of the abalation. This optimal optical zone may be used in the creation of corrective lenses and other ocular surgery in addition to refractive surgery. Provided with the optimal optical zone, a refractive surgeon may better choose the sugical parameters for the treatment. Current methods consist of choosing a default value for all patients or only choosing the scotopic pupil diameter or contour, either of wich may not be optimal and may lead to a deeper or bigger treatment.
摘要翻译：基于Stiles-Crawford效应和患者特异性暗视瞳孔参数确定患者的最佳光学区。本发明在屈光手术中特别有用，其中所选择的光学区域是关键的并且影响消融的深度和体积。除了屈光手术之外，该最佳光学区域可用于产生矫正镜片和其他眼部手术。提供最佳光学区域时，屈光外科医生可以更好地选择用于治疗的糖质参数。目前的方法包括为所有患者选择默认值或仅选择暗视瞳孔直径或轮廓，其中任何一种可能都不是最佳的，并且可能导致更深或更大的治疗。

4. 发明申请

WO03011175A3 TECHNIQUE FOR REMOVAL OF MATERIAL TO ACHIEVE A DESIRED SHAPE WITH A LASER 审中-公开
标题翻译：用激光去除材料以达到所需形状的技术
公开(公告)号：WO03011175A3
公开(公告)日：2003-07-31
申请号：PCT/US0224015
申请日：2002-07-30
申请人： LASERSIGHT TECH INC
发明人： SMITH MICHAEL J , MARROU LANCE R
IPC分类号： A61F9/01 , A61B18/20
CPC分类号： A61F9/008 , A61F9/00804 , A61F2009/00872 , A61F2009/00897
摘要： Methods are provided for material sculpting with a device which functions similar to a laser on human cornea or plastic that reduces surface roughness and computational overhead. These methods are based upon teaching of volumetric ablation based upon layer slices of the volume. The first method demonstrates how to apply the slice based sculpting to a regularly spaced sampling grid using stochastic perturbing from the grid points. The second method demonstrates how to apply a directly volumetric sculpting approach where a discrete estimate of the average beam size and shape is made and applied directly to the volume to ablate until all of the required volume is removed.
摘要翻译：提供了用于材料雕刻的方法，其具有类似于人角膜或塑料上的激光功能的装置，其减少表面粗糙度和计算开销。这些方法是基于基于体积的层切片的体积消融的教导。第一种方法演示了如何使用来自网格点的随机扰动将基于切片的雕刻应用于规则间隔的采样网格。第二种方法演示了如何应用直接体积雕刻方法，其中制作平均光束尺寸和形状的离散估计，并直接应用于体积以消除直到所有所需体积被去除。

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