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AMELIORATION DE LA VISION INTERMEDIAIRE AU MOYEN D'UN DISPOSITIF OPTIQUE MULTIFOCAL PHAQUE UTILISANT L'ACCOMODATION RESIDUELLE
专利权人:
LTD.;ALCON RESEARCH
发明人:
HONG, XIN,KARAKELLE, MUTLU,ZHANG, XIAOXIAO
申请号:
CA2675256
公开号:
CA2675256C
申请日:
2008.01.11
申请国别(地区):
CA
年份:
2015
代理人:
摘要:
In one aspect, the present invention provides a method of correcting vision, which comprises determining a residual accommodation exhibited by a natural, crystalline lens (34) of an eye (32), and selecting a multifocal intraocular lens (IOL) (20, 36), which exhibits a far-focus optical power (e.g., in a range of about -15 to about +50 Diopters (D) ) and an add power (e.g., in a range of about ID to about 4 D), for implantation in the eye while retaining the natural lens. The add power of the IOL is selected as a function of the residual accommodation such that a combination of the IOL and the natural lens provides a visual contrast greater than about 10% at a spatial frequency of about 20 cycles/degree for viewing objects at a distance greater than about 30 cm from the eye.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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