Pupil centered fovea focused optics assembly for intraocular lens

A technology of intraocular lens and components, applied in the direction of optical components, optics, intraocular lens, etc., can solve the problems of misalignment, optical misalignment, not falling on the center of the pupil, etc.

Inactive Publication Date: 2013-04-24
拉姆·斯里坎茨·米拉伊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, IOLs (prior art) also continue to inherit and cause the same pre-existing optical misalignment (optical decentering) defect, i.e., in most human / mammalian eyes, the center of the IOL does not fall on the center of the pupil / Does not coincide with the center of the pupil and the optical axis of the IOL falls exactly on the fovea

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  • Pupil centered fovea focused optics assembly for intraocular lens
  • Pupil centered fovea focused optics assembly for intraocular lens

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Embodiment Construction

[0025] In the following detailed description, reference is made to the accompanying drawings which form a part hereof, and in which are shown by way of illustrations specific embodiments which may be practiced. The embodiments herein are described in sufficient detail to enable those skilled in the art to practice the embodiments herein, and it is to be understood that logical, mechanical, and other changes may be made without departing from the scope of the embodiments herein. Accordingly, the following detailed description should not be taken in a limiting sense.

[0026] A pupil-centered and fovea-focusing optical assembly for an implantable intraocular lens comprising an annular platform disposed within the capsular bag of a mammalian eye and an intraocular lens mounted on the annular platform, the intraocular lens having an optical center and a geometric center. The optical center of the intraocular lens is deliberately decentered relative to the geometric center of the ...

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Abstract

The embodiments herein provide a pupil centered and fovea focused optics assembly comprising a ring platform provided inside a capsular bag of a mammalian eye to support an intraocular lens. The optical center of the intraocular lens is decentered with respect to the geometric center of the intraocular lens to align the optical centre of the lens with a visual axis of a pupil of the mammalian eye to improve the visual quality and to prevent an aberration. A plane of the intraocular lens is turned and tilted through a preset angle to point an optic axis of the intraocular lens to the Fovea. The preset angle is calculated based on an overall diameter of the capsular bag, a thickness of the ring platform, a decentering direction and a decentering distance of the optical axis of the intraocular lens using a three dimensional scanning of the mammalian eye.

Description

technical field [0001] Embodiments herein relate generally to the field of ophthalmology, and in particular to optical lenses used in ophthalmology, such as implantable intraocular lenses to be implanted in mammalian eyes. Embodiments herein relate more particularly to pupil-centered and fovea-focusing optical assemblies for implantable intraocular lenses. Background technique [0002] Intraocular lenses (IOLs) are used in cataract eye surgery to replace the human / cloudy mammalian (cataractized) lens for cataract or refractive and / or other reasons. The center of the pupil of the mammalian eye is not always on the visual axis of the eye. There is a normal, natural and pervasive decentering of the pupil relative to the optics of the eye. After IOL surgery, it is often found that the center of the IOL optic does not coincide with the center of the pupil or with the visual axis. This results in impaired visual clarity (visual acuity or visual function) and visual quality. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/16G02C7/04
CPCA61F2/1629A61F2/1632A61F2002/1681A61F9/0017A61F2/1637A61F2002/169A61F2002/16901A61F2/1694
Inventor 拉姆·斯里坎茨·米拉伊
Owner 拉姆·斯里坎茨·米拉伊
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