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1. (WO2018079072) ORTHOKERATOLOGY LENS

Pub. No.:    WO/2018/079072    International Application No.:    PCT/JP2017/031616
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Sat Sep 02 01:59:59 CEST 2017
IPC: G02C 7/04
A61F 9/013
Applicants: TORAY INDUSTRIES, INC.
東レ株式会社
Inventors: KATO, Kimiyasu
加藤公康
TANI, Yoshihiro
谷典浩
Title: ORTHOKERATOLOGY LENS
Abstract:
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.