Invention Application
- Patent Title: OPHTHALMIC MEDICAL INSTRUMENT INCLUDING PHOTOCHROMIC POLYMER AND PRODUCTION METHOD FOR OPHTHALMIC MEDICAL INSTRUMENT
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Application No.: US17617615Application Date: 2019-06-27
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Publication No.: US20220244428A1Publication Date: 2022-08-04
- Inventor: Tomomi TOMIDA , Kazuhiko NAKADA , Masaki BABA , Satomu NIIDA , Junji MOMODA , Masayuki MIYAZAKI , Junji TAKENAKA
- Applicant: MENICON CO., LTD. , TOKUYAMA CORPORATION
- Applicant Address: JP Nagoya-shi, Aichi; JP Shunan-shi,Yamaguchi
- Assignee: MENICON CO., LTD.,TOKUYAMA CORPORATION
- Current Assignee: MENICON CO., LTD.,TOKUYAMA CORPORATION
- Current Assignee Address: JP Nagoya-shi, Aichi; JP Shunan-shi,Yamaguchi
- International Application: PCT/JP2019/025687 WO 20190627
- Main IPC: G02B1/04
- IPC: G02B1/04 ; A61F2/16 ; G02B5/23 ; G02C7/04 ; G02C7/10

Abstract:
An ophthalmic medical device including a photochromic polymer having higher transparency under an inactive state through use of a photochromic monomer. An ophthalmic medical device according to one embodiment that includes a photochromic polymer obtained by polymerizing monomer components including a photochromic monomer and a lactam ring-containing monomer, wherein a content ratio of the lactam ring-containing monomer in the monomer components is from 10 wt % to 50 wt %. The ophthalmic medical device is typically a contact lens or an intraocular lens.
Information query