Intraocular lens

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12257143
APP PUB NO 20220401210A1
SERIAL NO

17779311

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Provided are an intraocular lens and a technique associated therewith, wherein an average value (exceeding 0 D) of base difference values within a first region from a lens center O to a position r1 of a first boundary is greater than 5 times an average value (exceeding 0 D) of base difference values within the first region from a lens center O of a virtual spherical lens having a base power at the lens center O to the position r1, a second region has a power resulting from adding one or more positive constant powers to a reference aspheric power, in a third region, the power is reduced so as to provide a negative longitudinal spherical aberration that cancels at least part of a positive longitudinal spherical aberration caused by a cornea, and a second step value is greater than a first step value.

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Patent Owner(s)

Patent OwnerAddress
HOYA MEDICAL SINGAPORE PTE LTD10 BIOPOLIS ROAD #04-01 SINGAPORE 138670

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sanger, Demas Fukaya, JP 6 142

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