Methods of diagnosing and treating dry eye syndrome and compositions for treating a human eye
In preferred embodiments the invention is directed to ocular compositions for the treatment of dry eye, methods for making such compositions, and suites comprising a plurality of different ocular compositions each having a defined composition. In preferred examples, the invention is directed to compositions comprising at least one natural oil, wherein a first member of the suite of compositions is effective in treating dry in in a first patient having a particular set of symptoms and a different second member of the suite of compositions is effective in treating dry in in a second patient having a different set of symptoms. The invention is also directed to methods of making and using the compositions, and to skin care compositions for use around the eye, such as the upper and lower eyelids having a lubricating, non-irritating base composition comprising at least one natural oil.
1. A composition for applying to an eye or eyelid of a human comprising:
water; and
0.1% (w/v) to 0.3% (w/v), inclusive, of a hydrophobic component, wherein the hydrophobic component comprises from about 0.05% (w/v) to about 0.25% (w/v) avocado oil and from about 0.05% (w/v) to about 0.25% (w/v) castor oil, and
at least one additional component selected from the group consisting of: an emulsifier component, a surfactant component, a tonicity component, a polyelectrolyte component, an emulsion stability component, a viscosity-enhancing component, a demulcent component, an anti-oxidant component, a pH adjustment component, a buffer component, and a preservative component,
the hydrophobic component being present in an amount effective to provide a benefit to an eye or eyelid of a human.
2. The composition of claim 1 in which said at least one additional component comprises a first viscosity-enhancing component having a negative charge.
3. The composition of claim 2 in which said at least one additional component further comprises a emulsion stability component.
4. The composition of claim 3 in which said first viscosity-enhancing component comprises a polymer of acrylic acid, and the emulsion stability component is a non-ionic surfactant.
5. The composition of claim 1 containing
a) from about 0.05% to about 0.01% by weight of a crosslinked co-polymer of acrylic acid and alkyl acrylate, and
b) from about 0.05% to about 1.5% by weight of a non-ionic surfactant.
6. The composition of claim 1 wherein the viscosity-enhancing component comprises a cellulose polymer selected from the group consisting of carboxymethyl cellulose (CM), methylcellulose (MC), hydroxypropyl methylcellulose (HPMC), hydroxyethyl cellulose (HEC), and hydroxypropyl cellulose.
7. The composition of claim 1 comprising, by weight, between about 0.5% and about 1% glycerin; between about 0.05% and about 1.5% polysorbate 80; between about 0.01% and about 0.05% of a crosslinked co-polymer of acrylic acid and alkyl acrylate; between about 0.01% and about 0.1% hydroxypropylmethyl cellulose; between about 0.25% and about 1.2% boric acid; and about 0.1% disodium ethylenediamine tetracetic acid (EDTA).
8. The composition of 7 wherein the avocado oil and the castor oil are each present at a concentration of about 0.05% by weight.
9. The composition of claim 8 wherein a biocidal agent is not present.
10. The composition of claim 8 further comprising a biocidal agent.
11. The composition of claim 1 , wherein the at least one component comprises a tonicity component, a viscosity enhancing agent, and a surfactant.
12. The composition of claim 1 , wherein the at least one component comprises glycerin, a crosslinked co-polymer of acrylic acid and alkyl acrylate, a hydroxypropyl methylcellulose, a non-ionic surfactant, and benzalkonium chloride.
13. The composition of claim 1 having a viscosity between about one 1.0 centipoise (cP) and about 2000 cP.
14. The composition of claim 13 having a viscosity less than about 250 cP.
15. The composition of claim 13 having a viscosity between about 250 centipoise (cP) and about 2000 cP.
16. The composition of claim 1 in which the avocado oil is present at a concentration of from about 0.05% (w/v) to about 0.1% (w/v).
17. The composition of claim 1 in which the castor oil is present at a concentration of from about 0.05% (w/v) to about 0.1% (w/v).
18. The composition of claim 1 in which the avocado oil is present at a concentration of about 0.05% (w/v) to about 0.1% (w/v) and the castor oil is present at a concentration of about 0.05% (w/v) to about 0.1% (w/v).
19. The composition of claim 1 comprising an artificial tear.
20. The composition of claim 1 comprising an eyelid treatment composition.
21. The composition of claim 1 , wherein the at least one additional component comprises a viscosity enhancing agent.
22. The composition of claim 21 , wherein the viscosity enhancing agent comprises methylcellulose (MC), carboxymethylcellulose (CMC), hydroxypropyl methylcellulose (HPMC), hydroxyethyl cellulose (HEC), hyaluronic acid salts, or combinations thereof.