Ophthalmic fluid
AssigneePlanned Products Pty Ltd.
InventorAnthony William Sly
Life of this patent
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Abstract
An ophthalmic fluid containing at least one triglyceride, diglyceride, or monoglyceride which is chemically similar or compatible with compounds found naturally in the lipid layer of the tear film of an ocular substrate. Preferably the glycerides are derived from a fatty acid containing at least one unsaturated bond in a cis-configuration in the fatty acid residue. The ophthalmic fluid is arranged in use to provide a protective film across a tear film of an ocular substrate. Furthermore, the ophthalmic fluid is also arranged in use to provide a protective film intermediate a lipid layer of the tear film of the ocular substrate and a contact lens.
Claims5
A method of providing a protective film intermediate a lipid layer of a tear film of an ocular substrate and a contact lens, comprising topically applying to an inner surface of the contact lens a coat of an ophthalmic fluid and subsequently applying the coated inner surface of the contact lens to the ocular substrate, wherein the ophthalmic fluid consists essentially of at least one glyceride of formula (I):
- wherein R1═R2═R3 is O—CO—R;
- or R1═R3 is O—CO—R when R2 is OH;
- or R1 is O—CO—R when R2═R3═OH;
- R is a fatty acid residue comprising 16–20 carbon atoms and containing at least one unsaturated bond, and R is the same or different when R1═R3 or R1═R2═R3.
Dependencies are inferred from the claim text.