Gas permeable ophthalmic lens material and gas permeable ophthalmic lens of such material
First Claim
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1. A gas permeable ophthalmic lens formed with:
- a gas permeable ophthalmic lens material, the gas permeable ophthalmic lens material comprising;
tetraethoxysilane molecules; and
ionic silane molecules;
wherein the ionic silane molecules comprise positive charges and negative charges;
the gas permeable ophthalmic lens comprises following chemical structure;
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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.
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Citations
6 Claims
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1. A gas permeable ophthalmic lens formed with:
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a gas permeable ophthalmic lens material, the gas permeable ophthalmic lens material comprising; tetraethoxysilane molecules; and ionic silane molecules; wherein the ionic silane molecules comprise positive charges and negative charges;
the gas permeable ophthalmic lens comprises following chemical structure; - View Dependent Claims (2, 3, 4, 5, 6)
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Specification