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Details for Patent: 6,583,124

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Details for Patent: 6,583,124

Title: Ophthalmic compositions containing galactomannan polymers and borate
Abstract:The present invention is directed to ophthalmic compositions containing a gelling amount of a combination of galactomannan polysaccharides and borates. The compositions gel or partially gel upon administration to the eye. The present invention also discloses methods of topical ophthalmic administration of the compositions to the eye.
Inventor(s): Asgharian; Bahram (Arlington, TX)
Assignee: Alcon Manufacturing, Ltd. (Fort Worth, TX)
Filing Date:Apr 22, 2002
Application Number:10/128,559
Claims:1. An artificial tear solution comprising a galactomannan polymer, a borate compound and water; wherein the solution contains the galactomannan polymer and the borate compound in amounts effective to form a gel or partial gel when the solution is topically administered to the eye, and does not contain a pharmaceutically active agent.

2. An artificial tear solution according to claim 1, wherein the borate compound is selected from the group consisting of boric acid, sodium borate, potassium borate and combinations thereof.

3. An artificial tear solution according to claim 2, wherein the galactomannan is selected from the group consisting of guar gum, locust bean gum, tara gum and chemically modified derivatives thereof.

4. An artificial tear solution according to claim 3, wherein the borate compound comprises boric acid.

5. An artificial tear solution according to claim 1, wherein the galactomannan comprises hydroxypropyl guar and the borate compound comprises boric acid.

6. An artificial tear solution according to any one of claims 1-4, the composition contains the galactomannan polymer in a concentration of 0.1 to 3.0% (w/v) and the borate compound in a concentration of 0.1 to 2.0% (w/v).

7. A method of lubricating or moisturizing an eye, which comprises topically applying to the eye an effective amount of an artificial tear solution according to claim 6.

8. An artificial tear solution according to any one of claims 1-5, wherein the composition has a slightly acidic to neutral pH.

9. An artificial tear solution according to claim 1, wherein the composition has a pH of 6 to 7.

10. A method of lubricating or moisturizing an eye, which comprises topically applying to the eye an effective amount of a composition according to claim 9.

11. A method of lubricating or moisturizing an eye which comprises topically applying to the eye an effective amount of an artificial tear solution according to any one of claims 1-5.

12. A method of lubricating or moisturizing an eye, which comprises topically applying to the eye an effective amount of a composition according to claim 1.
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