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    • 17. 发明授权
    • System and method of integrating corneal topographic data and ocular wavefront data with primary ametropia measurements to create a soft contact lens design
    • 将角膜地形数据和眼波前数据与原始屈光不正测量结合的系统和方法,以创建柔软的隐形眼镜设计
    • US06305802B1
    • 2001-10-23
    • US09372718
    • 1999-08-11
    • Jeffrey H. RoffmanMichael J. CollinsBrett A. DavisDenwood F. Ross, III
    • Jeffrey H. RoffmanMichael J. CollinsBrett A. DavisDenwood F. Ross, III
    • A61B300
    • G02C7/04G02C2202/22
    • A system and method is provided for integrating corneal topographic data and ocular wavefront data with primary ametropia measurements to create a soft contact lens design. Corneal topographic data is used to design a better fitting soft contact lens by achieving a contact lens back surface which is uniquely matched to a particular corneal topography, or which is an averaged shape based on the particular corneal topography. In the case of a uniquely matched contact lens back surface, the unique back surface design also corrects for the primary and higher order optical aberrations of the cornea. Additionally, ocular wavefront analysis is used to determine the total optical aberration present in the eye. The total optical aberration, less any corneal optical aberration corrected utilizing the contact lens back surface, is corrected via the contact lens front surface design. The contact lens front surface is further designed to take into account the conventional refractive prescription elements required for a particular eye. As a result, the lens produced exhibits an improved custom fit, optimal refractive error correction and vision.
    • 提供了一种系统和方法,用于将角膜地形数据和眼波前数据与原始屈光不正测量结合在一起,以创建柔软的隐形眼镜设计。 角膜地形数据用于通过实现与特定角膜形貌独特匹配的隐形眼镜后表面,或者基于特定角膜形貌的平均形状来设计更好的软性隐形眼镜。 在独特匹配的隐形眼镜后表面的情况下,独特的后表面设计也可纠正角膜的主要和高阶光学像差。 另外,眼波前分析用于确定眼睛中存在的总光学像差。 通过隐形眼镜前表面设计校正总光学像差,减少使用隐形眼镜后表面校正的任何角膜光学像差。 隐形眼镜前表面进一步被设计成考虑特定眼睛所需的常规折射处方元件。 结果,所制造的镜片表现出改进的定制配合,最佳的屈光不正的校正和视觉。
    • 18. 发明授权
    • Concentric annular ring lens designs for astigmatic presbyopes
    • 同心环形透镜设计用于散光老花眼
    • US5847802A
    • 1998-12-08
    • US892466
    • 1997-07-14
    • Edgar V. MenezesJeffrey H. Roffman
    • Edgar V. MenezesJeffrey H. Roffman
    • A61F2/16B29D11/00G02B3/08G02C7/04G02C7/06
    • G02C7/044G02C7/042G02C7/06
    • Concentric lens designs are disclosed for astigmatic presbyopes which comprise at least one surface which has a circular central portion and a plurality of concentric annular rings with at least three separate optical powers corresponding to a prescription for a patient and corresponding to 1) a basic distance spherical prescription Rx, 2) a near add spherical prescription Rx, and 3) a spherical prescription corresponding to the full, or preferably a fraction of the, cylindrical prescription Rx. An astigmatic presbyopic prescription contains an astigmatic correction, normally in the nature of a cylindrical prescription which specifies both the cylindrical optical power and the orientation of the cylindrical axis. The cylindrical prescription is taken into account in the design of the lens, but not with a cylindrical optical surface. Instead, the present invention recognizes that the brain can effectively discriminate between separate competing images by accepting an in-focus image and rejecting an out-of-focus image. Accordingly, a portion of the lens is provided with a spherical surface corresponding to the cylindrical prescription, or more preferably a fraction of the full cylindrical prescription, and the brain is relied upon to discriminate and accept an in-focus image to compensate for the patient's astigmatism.
    • 公开了用于散光老花眼的同心透镜设计,其包括具有圆形中心部分的至少一个表面和具有对应于患者处方的至少三个分开的光学功率的多个同心圆环,并且对应于1)基本距离球面 处方Rx,2)近球形处方Rx,以及3)对应于圆柱形处方Rx的全部或优选一部分的球形处方。 散光的老花眼处方包含散光校正,通常是圆柱形处方的性质,其规定圆柱形光焦度和圆柱轴线的取向。 在透镜的设计中考虑圆柱形处方,但不考虑圆柱形光学表面。 相反,本发明认识到,大脑可以通过接受对焦图像和拒绝离焦图像来有效地区分分离的竞争图像。 因此,透镜的一部分设置有与圆柱形处方相对应的球形表面,或者更优选为圆柱形处方的一部分,并且依靠大脑来区分并接受对焦图像以补偿患者的 散光。
    • 20. 发明授权
    • Pupil-tuned multifocal ophthalmic lens
    • 瞳孔调整多焦点眼科镜片
    • US5448312A
    • 1995-09-05
    • US988088
    • 1992-12-09
    • Jeffrey H. RoffmanTimothy R. PolingMichel Guillon
    • Jeffrey H. RoffmanTimothy R. PolingMichel Guillon
    • G02B3/10G02C7/04G02C7/06
    • G02C7/044G02C7/042G02C7/06
    • An ophthalmic lens provides a cumulative ratio of distance to near focal length that is predominantly distance correction under high illumination, nearly evenly divided under moderate illumination, and favoring again distance vision correction under low level illumination. The lens is specifically adjusted to match the patient's pupil size as a function of illumination level, in the preferred embodiment by applying pupil size parameters as a function of age. This lens has the properties of matching both the distribution of near and distance focal vision correction to the type of human activity typically undertaken in various illumination conditions, as well as matching particular lens dimensions to suit the size of the pupil as a function of illumination intensity.
    • 眼科镜片提供距离近近焦距的累积比例,主要是在高照度下的距离校正,几乎在中度照度下均匀分布,并有利于在低水平照明下再次进行距离视力矫正。 在优选实施例中,通过应用作为年龄的函数的瞳孔尺寸参数,镜片被特别地调节以匹配患者的瞳孔尺寸作为照明水平的函数。 该透镜具有将近距离和距离焦点视觉校正的分布与通常在各种照明条件下进行的人类活动的类型匹配的特性,以及匹配特定透镜尺寸以适合作为照明强度的函数的瞳孔尺寸 。