External lens adapted to change refractive properties
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United States of America Patent
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Aug 9, 2011
Grant Date -
Jun 21, 2007
app pub date -
Jun 23, 2006
filing date -
Oct 27, 2005
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A lens system is provided. The lens system includes a lens adapted to be positioned along the main optical axis of the eye and a control unit. The control unit is operable with the lens to alter the focal length of the lens based at least partly upon a condition, such that the lens alters light rays and focuses the rays on the retina of the eye.
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