FIELD: ophthalmology.
SUBSTANCE: built-in silicone hydrogel contact lenses, including a silicone hydrogel material and a hydrophobic insert. The silicone hydrogel material contains repeating units of at least one first polysiloxane-vinyl crosslinker, including hydrophilized siloxane units, each of which contains one methyl substituent and one organic radical containing at least one H-bond donor, while the content of at least one specified H-bond donor is min 0.8 meq/g relative to the molecular weight of at least one first polysiloxane-vinyl crosslinker, and repeating units of at least one hydrophilic vinyl monomer. The insert consists of a crosslinked polymeric material in which the mole fraction of repeating units of acrylic is not less than 55%, and the mole of repeating units of at least one vinyl crosslinker is not less than 6%.
EFFECT: these lenses are not subject to delamination.
21 cl, 10 tbl, 4 ex
| Title | Year | Author | Number |
|---|---|---|---|
| MATERIALS FOR INSERTS WITH HIGH OXYGEN PERMEABILITY AND HIGH REFRACTION INDEX | 2021 |
|
RU2823149C1 |
| MULTIFOCAL DIFFRACTION SILICONE HYDROGEL CONTACT LENSES | 2022 |
|
RU2818984C2 |
| SILOXANE MATERIALS FOR INSERT WITH HIGH REFRACTIVE INDEX FOR CONTACT LENSES CONTAINING EMBEDDED ELEMENT | 2021 |
|
RU2807549C1 |
| WET SILICONE HYDROGEL CONTACT LENSES | 2020 |
|
RU2801573C1 |
| ONE-WEEK AND ONE-MONTH WATER-GRADIENT CONTACT LENSES | 2018 |
|
RU2777488C2 |
| SILICONE HYDROGEL CONTACT LENSES | 2018 |
|
RU2769703C2 |
| SILICONE HYDROGEL CONTACT LENSES | 2018 |
|
RU2766412C2 |
| HYDROPHILISED POLYDIORGANOSILOXANE VINYL CROSS-LINKING AGENTS AND METHODS OF USE THEREOF | 2016 |
|
RU2820814C2 |
| HYDROPHILISED POLYDIORGANOSILOXANE VINYL CROSS-LINKING AGENTS AND METHODS FOR USE THEREOF | 2016 |
|
RU2727517C2 |
| SILICONE HYDROGEL LENSES WITH WATER-ENRICHED SURFACES | 2021 |
|
RU2775370C1 |
