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US 2006/0142855 A1Published application
Small incision intraocular lens with anti-PCO feature
AssigneeBausch & Lomb Incorporated
InventorsJerome Vaudant, Gary Richardson, GRIFFITH ALTMAN
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Abstract
A thin intraocular lens for inhibiting posterior capsular opacification (PCO) includes an optic having a sharp edge which extends posteriorly and between a posterior concave region and an outer-most peripheral edge surface that extends parallel to the optical axis.
Claims33
An intraocular lens for implanting in a human eye, comprising:
- a) a lens optic having opposite anterior and posterior optic surfaces and an optical axis extending from said anterior surface to said posterior surface;
- b) a posterior concave region blending smoothly with and located radially outwardly of said posterior optic surface;
- c) an anterior concave region blending smoothly with and located radially outwardly of said anterior optic surface;
- d) an outer-most peripheral edge surface located radially outwardly of said anterior and posterior concave regions, said outer-most peripheral edge surface lying substantially parallel to said optical axis;
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- e) a posteriorly extending sharp edge extending 360° around said posterior optic surface and defined by first and second surfaces forming an angle “A” having an apex lying along an apex axis which extends substantially parallel to said optical axis, said first surface blending smoothly with said posterior concave region and said second surface forming an angle “B” with said outer-most peripheral edge surface, whereby said sharp edge may press against the posterior capsular bag of a patient implanted with said IOL, said sharp edge thereby operable to inhibit PCO.
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Dependencies are inferred from the claim text.