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LENTILLE ORTHOKÉRATOLOGIE
专利权人:
Toray Industries; Inc.
发明人:
KATO, Kimiyasu,TANI, Yoshihiro
申请号:
EP17863363
公开号:
EP3495873A4
申请日:
2017.09.01
申请国别(地区):
EP
年份:
2019
代理人:
摘要:
The present invention provides an orthokeratology lens for correcting vision by reshaping a cornea, said orthokeratology lens being characterized in that: the lens surface coming in contact with the cornea comprises a center part called a base region arranged at the center and pressing the cornea, an annular part called a reverse region arranged around the base region, an annular part called an alignment region arranged around the reverse region, and an annular part called a peripheral region arranged around the alignment region; and the depth of a lens required for reshaping a cornea is constant under the same radius of curvature of the alignment region by changing the radius of curvature of the reverse region even if changes occur in the radius of curvature and width of the base region, the width of the reverse region, the radius of curvature and width of the alignment region, the radius of curvature and width of the peripheral region, and a degree of vision a wearer desires to obtain by the correction.
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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