公开(公告)号：US4614413A

公开(公告)日：1986-09-30

申请号：US697923

申请日：1985-02-05

申请人： George A. Obssuth

发明人： George A. Obssuth

IPC分类号： G02C7/04

CPC分类号： G02C7/04 ,  G02C7/041 ,  G02C7/045 ,  G02C7/048

摘要： A contact lens is provided having a substantially concavo-convex lenticular carrier. The carrier has a palpebral anchor portion which is shaped for seating between the conjunctiva of the lower eyelid and the inferior sclera of the eyeball, so that the carrier is held in place with respect to the lower eyelid by the muscles of the lower eyelid. The carrier also has an optical portion which projects upwardly from the anchor portion and which has a reading vision correction area which lies below the pupil of the eye when the wearer of the lens is looking straight ahead and substantially covers the pupil when the eye is moved to a reading position. The junction between the anchor portion and the optical portion extends substantially along the margin of the lower eyelid. The optical portion may consist solely of a reading vision correction area, so that the lens acts as a "half eye" lens, or may also include one or more distance vision correction areas, so that the lens acts as a true bifocal or trifocal lens.

摘要翻译： 提供一种隐形眼镜，其具有基本上为凹凸的透镜状载体。 载体具有睑部锚定部分，其形状适用于下眼睑的结膜与眼球的下巩膜之间，使得载体由下眼睑的肌肉相对于下眼睑保持在适当位置。 载体还具有从锚固部分向上突出的光学部分，并且当透镜的佩戴者直视前方时具有位于眼睛瞳孔下方的读取视力校正区域，并且当眼睛移动时基本上覆盖瞳孔 到阅读位置。 锚固部分​​和光学部分之间的接合部基本上沿着下眼睑的边缘延伸。 光学部分可以仅由读取视力校正区域组成，使得透镜充当“半眼”透镜，或者还可以包括一个或多个距离视力校正区域，使得透镜充当真正的双焦点或三焦点透镜 。