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US 2019/0094416 A1Published application
Gas permeable ophthalmic lens material and gas permeable ophthalmic lens of such material
AssigneeHon Hai Precision Industry Co., Ltd.
InventorHSIU-WEN CHIEN
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Abstract
A gas permeable ophthalmic lens material comprises a tetraethoxysilane and an ionic silane. The ionic silane comprises positive charges and negative charges. The lens made therefrom thus comprises positive and negative charges, thus the gas permeable ophthalmic lens is hydrophilic, and prevents adhesion of bacteria in allowing the surface of the human eye to breath. A gas permeable ophthalmic lens made of the gas permeable ophthalmic lens material is also provided.
Claims18
A gas permeable ophthalmic lens material comprising:
- a tetraethoxysilane;
- and
- an ionic silane;
- wherein the ionic silane comprises positive charges and negative charges.
1 more element
A gas permeable ophthalmic lens formed with:
- a gas permeable ophthalmic lens material, the gas permeable ophthalmic lens material comprising:
- a tetraethoxysilane;
- and
- an ionic silane;
- wherein the ionic silane comprises a positive charge and a negative charge.
2 more elements
Dependencies are inferred from the claim text.