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121 条记录 (耗时 0.186 秒)

    Aspheric fluid filled lens optic
    81.
    发明授权
    Aspheric fluid filled lens optic 有权
    非球面液体填充透镜

    公开(公告)号：US08136942B2

    公开(公告)日：2012-03-20

    申请号：US12579203

    申请日：2009-10-14

    申请人： Amitava Gupta ,  Urban Schnell ,  Karim Haroud ,  Hans Jaeger

    发明人： Amitava Gupta ,  Urban Schnell ,  Karim Haroud ,  Hans Jaeger

    IPC分类号： G02C7/02 ,  G02B3/12

    CPC分类号： G02B3/14 ,  G02B3/04 ,  G02B3/06 ,  G02B27/0025 ,  G02C7/085 ,  G02C2202/16

    摘要： A non-round fluid lens assembly includes a non-round rigid lens and a flexible membrane attached to the non-round rigid lens, such that a cavity is formed between the non-round rigid lens and the flexible membrane. A reservoir in fluid communication with the cavity allows a fluid to be transferred into and out of the cavity so as to change the optical power of the fluid lens assembly. In an embodiment, a front surface of the non-round rigid lens is aspheric. Additionally or alternatively, a thickness of the flexible membrane may be contoured so that it changes shape in a spheric manner when fluid is transferred between the cavity and the reservoir.

    摘要翻译： 非圆形透镜组件包括非圆形刚性透镜和附接到非圆形刚性透镜的柔性膜，使得在非圆形刚性透镜和柔性膜之间形成空腔。 与空腔流体连通的储存器允许将流体转移到腔体中并流出空腔，以便改变流体透镜组件的光学功率。 在一个实施例中，非圆形刚性透镜的前表面是非球面的。 附加地或替代地，柔性膜的厚度可以是轮廓，使得当流体在空腔和储存器之间转移时，其可以以球形的方式改变形状。

    Method for designing multifocal contact lenses
    83.
    发明授权
    Method for designing multifocal contact lenses 有权
    多焦点隐形眼镜设计方法

    公开(公告)号：US07481533B2

    公开(公告)日：2009-01-27

    申请号：US11554105

    申请日：2006-10-30

    申请人： Amitava Gupta ,  Susan W. Neadle

    发明人： Amitava Gupta ,  Susan W. Neadle

    IPC分类号： G02C7/02 ,  G02C7/06

    CPC分类号： G02C7/044 ,  G02C7/027 ,  G02C7/042

    摘要： The invention provides methods for designing contact lenses that takes into account pupil size and vergence. The lenses of the invention augment the eye's accommodative gain and take advantage of the eye's residual accommodation amplitude.

    摘要翻译： 本发明提供了考虑到瞳孔大小和聚集度的隐形眼镜的设计方法。 本发明的镜片增加了眼睛的调节增益，并且利用了眼睛的剩余调节幅度。

    Prismatic intraocular lenses and related method of using such lenses to restore vision in patients with central field loss
    87.
    发明授权
    Prismatic intraocular lenses and related method of using such lenses to restore vision in patients with central field loss 失效
    棱镜型眼内透镜及相关的使用这种镜片的方法可以恢复患有中心性丧失的患者的视力

    公开(公告)号：US5683457A

    公开(公告)日：1997-11-04

    申请号：US647228

    申请日：1996-05-09

    申请人： Amitava Gupta ,  Richard Mackool

    发明人： Amitava Gupta ,  Richard Mackool

    IPC分类号： A61F2/16

    CPC分类号： A61F2/1648 ,  A61F2/1621 ,  A61F2002/1683

    摘要： A pair of intraocular lenses for restoring visual function to a patient with central field loss. The pair of intraocular lenses includes a first lens for implantation into a first eye of the patient to provide vision of targets located at a distance greater than five feet from the first eye and a second lens for implantation into a second eye of the patient to provide vision of targets at a distance less than twelve inches from the second eye. The first and second lenses each include a prismatic wedge for shifting retinal images to a functional portion of a retina of each respective first and second eye.

    摘要翻译： 一种用于恢复具有中心场损失的患者的视觉功能的眼内透镜。 一对眼内透镜包括用于植入患者的第一只眼睛的第一透镜，以提供位于距离第一眼大于五英尺的距离处的目标的视力，以及用于植入患者的第二只眼睛的第二透镜，以提供 距离第二只眼睛小于十二英寸的距离的目标的视力。 第一和第二透镜各自包括用于将视网膜图像移动到每个相应的第一和第二眼睛的视网膜的功能部分的棱镜楔形物。

    Optical lenses, haptics therefor and optical lens bodies having haptics
    88.
    发明授权
    Optical lenses, haptics therefor and optical lens bodies having haptics 失效
    光学透镜，其触觉件和具有触觉的光学透镜体

    公开(公告)号：US5319023A

    公开(公告)日：1994-06-07

    申请号：US905991

    申请日：1992-06-26

    申请人： Amitava Gupta

    发明人： Amitava Gupta

    IPC分类号： C08F8/00 ,  G02B1/04

    CPC分类号： G02B1/043 ,  C08F8/00

    摘要： Optical lens bodies and haptics therefore are prepared from polymeric materials wherein all surfaces of the materials are substantially biologically inert to occular tissue, all surfaces are substantially free of surface defects when viewed through a 10 power optical microscope, the materials have a contact angle with water of at least 85.degree., a contact angle with glycerol of least 75.degree. and a surface energy less than 30 erg/cm.sup.2.

    摘要翻译： 因此，光学透镜体和触觉体由聚合物材料制成，其中材料的所有表面对于眼组织具有实质上的生物惰性，当通过10倍光学显微镜观察时，所有表面基本上没有表面缺陷，该材料与水接触 至少85°，与甘油的接触角至少为75°，表面能低于30erg / cm2。

    Multifocal optical lens
    89.
    发明授权
    Multifocal optical lens 失效
    多功能光学镜头

    公开(公告)号：US5080472A

    公开(公告)日：1992-01-14

    申请号：US383797

    申请日：1989-07-21

    申请人： Amitava Gupta

    发明人： Amitava Gupta

    IPC分类号： G02C7/04 ,  G02C7/06

    CPC分类号： G02C7/041 ,  G02C7/042 ,  G02C7/044 ,  G02C7/061 ,  G02C2202/12 ,  Y10S359/90

    摘要： A multifocal lens useful as a contact lens or implantable as an intraocular lens which comprises at least 3 zones, the first zone comprising a polymer of a specified refractive index, the second zone comprising a polymer having the same repeating units as the polymer comprising the first zone and having a specified refractive index differing from the refractive index of the polymer comprising the first zone by not more than 0.1 units and by not less than 0.01 units and the third zone between the first and second zones comprising a polymer having the same repeating units as the polymers comprising the first and second zones and having a refractive index continuously variable between that of the polymer comprising the first zone and that of the polymer comprising the second zone, the at least three zones being transparent and having no discontinuities visible to the human eye between the zones.

    摘要翻译： 一种可用作隐形眼镜或作为人工晶状体植入的多焦点透镜，其包括至少3个区域，所述第一区域包含特定折射率的聚合物，所述第二区域包含具有与聚合物相同的重复单元的聚合物，所述聚合物包含第一 并且具有与包含第一区的聚合物的折射率不同的特定折射率不超过0.1个单位且不小于0.01个单位，并且第一和第二区之间的第三区包含具有相同重复单元的聚合物 作为包含第一和第二区的聚合物并且具有在包含第一区的聚合物和包含第二区的聚合物的折射率之间连续变化的折射率，所述至少三个区域是透明的并且没有人类可见的不连续性 区域之间的眼睛。

    Surface passivated intraocular lens
    90.
    发明授权
    Surface passivated intraocular lens 失效
    表面钝化人工晶状体

    公开(公告)号：US4655770A

    公开(公告)日：1987-04-07

    申请号：US741758

    申请日：1985-06-06

    申请人： Amitava Gupta ,  Robert L. Van Osdel

    发明人： Amitava Gupta ,  Robert L. Van Osdel

    IPC分类号： A61L27/16 ,  C08J7/12 ,  A61F2/14

    CPC分类号： C08J7/12 ,  A61F2/16 ,  A61L27/14 ,  A61L27/16 ,  A61L2430/16 ,  C08J2333/12

    摘要： An intraocular lens is treated to form a modified passivated outer surface for reducing or eliminating biological reactions of inflammatory origin when the lens is implanted into an eye. The lens is formed from a conventional lens implant material, such as polymethyl methacrylate (PMMA), which is treated as required to create an outer surface region including a relatively high density of hydroxyl groups. This outer surface region is reacted with a selected fluorocarbon carried in a solution with a primer including bonding agents for bonding the fluorocarbon with respect to the hydroxyl groups, thereby creating a thin, substantially inert or passivated outer surface resistant to irritative reaction with tissue or cells when the lens is implanted into the eye.

    摘要翻译： 处理眼内晶状体以形成经修饰的钝化外表面，用于在将晶状体植入眼中时减少或消除炎性起源的生物反应。 透镜由常规的透镜植入材料形成，例如聚甲基丙烯酸甲酯（PMMA），其根据需要进行处理以产生包括相对高密度羟基的外表面区域。 该外表面区域与在溶液中携带的选择的碳氟化合物反应，其中包含用于将碳氟化合物相对于羟基键合的粘合剂的底漆，从而产生耐薄弱，基本上惰性或钝化的外表面，以抵抗对组织或细胞的刺激反应 当镜片植入眼睛时。