Title:
CONTACT LENS
Document Type and Number:
WIPO Patent Application WO/2023/241080
Kind Code:
A1
Abstract:
A contact lens (100), comprising a lens body (1) and an embedded structure (2) embedded in the lens body (1). The lens body (1) comprises a cornea part (13) and a sclera part (14) surrounding the cornea part (13). A connection boundary (B14) of the cornea part (13) and the sclera part (14) has an inner diameter (D14) ranging from 11.5 mm to 12.3 mm. A layout boundary (131) is defined in the cornea part (13), which is separated from the connection boundary (B14) by 3.8-4.2 mm. The embedded structure (2) is located on the outer side of the layout boundary (131) and is provided with a three-dimensional carrier plate (21). At least one oxygen-permeable channel (211) is formed on the three-dimensional carrier plate (21) and forms a central angle of 360 degrees. Along a top view direction, no more than 70% of an annular layout area (132) between the layout boundary (131) and the connection boundary (B14) is shielded by the embedded structure (2). The area, provided for the embedded structure (2), of the lens body (1) can be correspondingly planned according to an eye structure, so that the assembly mating of the contact lens (100) can meet more oxygen permeability requirements.
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Inventors:
YANG TE-SHENG (CN)
CHANG HAN-YI (CN)
TING WEI-JIA (CN)
CHIANG YU-YEN (CN)
CHANG HAN-YI (CN)
TING WEI-JIA (CN)
CHIANG YU-YEN (CN)
Application Number:
PCT/CN2023/076747
Publication Date:
December 21, 2023
Filing Date:
February 17, 2023
Export Citation:
Assignee:
PEGAVISION CORP (CN)
International Classes:
G02C7/04
Foreign References:
| TW202006428A | 2020-02-01 | |||
| CN106104365A | 2016-11-09 | |||
| CN113039477A | 2021-06-25 | |||
| US20190324292A1 | 2019-10-24 | |||
| US20200301170A1 | 2020-09-24 |
Attorney, Agent or Firm:
LUNG TIN INTELLECTUAL PROPERTY AGENT LTD. (CN)
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