Invention Application
- Patent Title: UV/HEVL-FILTERING SILICONE HYDROGEL CONTACT LENSES
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Application No.: US18665682Application Date: 2024-05-16
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Publication No.: US20240392055A1Publication Date: 2024-11-28
- Inventor: Troy Vernon Holland , Adam K. Sniady , Frank Chang
- Applicant: Alcon Inc.
- Applicant Address: CH Fribourg
- Assignee: Alcon Inc.
- Current Assignee: Alcon Inc.
- Current Assignee Address: CH Fribourg
- Main IPC: C08F230/08
- IPC: C08F230/08 ; B29D11/00 ; B29K83/00 ; B29K105/00 ; G02B1/04 ; G02C7/10

Abstract:
Described herein is a UV/HEVL-filtering SiHy contact lens that not only has a relatively high UV/HEVL filtering capability but also has an aesthetic appealing color. The bulk silicone hydrogel of the UV/HEVL-filtering SiHy contact lens comprises repeating units of (1) at least one hydrophilic vinylic monomer, (2) at least one siloxane-containing vinylic monomer and/or at least one polysiloxane vinylic crosslinker, (3) at least one UV-absorbing vinylic monomer having an absorption peak at a wavelength of from 280 nm and 380 nm, (4) a first HEVL-absorbing benzotriazole-containing vinylic monomer having an absorption peak at a wavelength of from 410 nm and 420 nm, (5) a second HEVL-absorbing benzotriazole-containing vinylic monomer having an absorption peak at a wavelength of from 415 nm and 425 nm, and (6) from about 90 ppm to about 300 ppm of repeating units of at least one polymerizable blue dye.
Information query
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