Double bifocal intraocular lens-spectacle telescopic device for low vision use
First Claim
1. An apparatus for improving low vision in the eye, comprising:
- a first optical element including an outer annular region having a first optical power and an inner region having a second optical power, said optical element sized and configured for placement on or within the eye;
a second optical element external to the eye and sized and configured to be in optical communication with said first optical element, said second optical element including first and second regions, said first region having a first portion having an optical power selected in conjunction with said first optical power of said outer region to provide for substantially the standard distance correction required by the eye, said second region including a second portion having an optical power selected in conjunction with said inner region of said first optical element to provide a magnified focused retinal image.
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Accused Products
Abstract
A double bifocal intra-ocular lens and spectacle system that can be used to enhance the vision of persons suffering from low-vision includes a first optical element placed in or on the eye, and a second optical element placed external to the eye. In particular, the first optical element is designed to be placed in or on the eye. This element includes an inner region and an outer annular region with first and second optical powers respectively. A second optical element that has two regions is disposed external to the eye and aligned so that a first region having a third optical power is optically coupled to the outer annular region for normal vision and the respective optical powers are selected to provide for the standard distance correction of the eye. The second region is arranged so that when aligned with the eye, the second region and the inner region of the first optical element form a Galilean telescope that provides for a magnified image to be provided therefrom.
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Citations
46 Claims
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1. An apparatus for improving low vision in the eye, comprising:
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a first optical element including an outer annular region having a first optical power and an inner region having a second optical power, said optical element sized and configured for placement on or within the eye;
a second optical element external to the eye and sized and configured to be in optical communication with said first optical element, said second optical element including first and second regions, said first region having a first portion having an optical power selected in conjunction with said first optical power of said outer region to provide for substantially the standard distance correction required by the eye, said second region including a second portion having an optical power selected in conjunction with said inner region of said first optical element to provide a magnified focused retinal image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An apparatus for improving low vision in the eye, comprising:
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a first optical element including an outer annular region having a first optical power and an inner region having a second optical power, said optical element sized and configured for placement on or within the eye;
a second optical element external to the eye and sized and configured to be in optical communication with said first optical element, said second optical element including first, second, and third regions, said first region having a portion having an optical power selected in conjunction with said outer region of said first optical element to provide for substantially the standard distance pseudophakic correction of the eye, said second region having a portion having an optical power selected in conjunction with said inner region of said first optical element to provide a focused retinal image having a first magnification of a distant object, and said third region having a portion having an optical power selected in conjunction with said inner region of said first optical element to provide a clear retinal image having a second magnification of an object at a short (reading) distance. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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46. A kit of parts for improving low vision in the eye, comprising:
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a first optical element including an outer annular region having a first optical power and an inner region having a second optical power, said optical element sized and configured for implantation in the eye;
a second optical element external to the eye sized and configured to be placed in optical communication with said first optical element, said second optical element including first and second regions, said first region having an optical power selected in conjunction with said outer region of said first optical element to provide for unmagnified and unrestricted peripheral vision, said second region having an optical power selected in conjunction with said inner region of said first optical element to provide a magnified retinal image; and
educational materials containing instructions on the application and use of said kit.
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Specification