Methods of treating meibomian gland dysfunction

1. A method of treating a Meibomian gland dysfunction in the margins of an eye of a subject, comprising administering to the subject in need thereof an effective amount of a compound of formula I:

wherein

X is O;

G is O;

Z is NO 2 or CN;

Y is CF 3 ;

Q is CN;

T is OH, OR or NHCOR;

R is alkyl, aryl, alkenyl, halogen or OH;

R 1 is CH 3 , CF 3 , CH 2 F, CHF 2 , CH 2 CH 3 or CF 2 CF 3 and

n is 0 or 1;

or its isomer, pharmaceutically acceptable salt, pharmaceutical product, N-oxide, hydrate, or any combination thereof;

wherein the treating results in normalization of abnormal Meibomian gland secretions with an improvement in tear lipid composition, an increase in tear fatty acid content and an increase in the palmitate:stearate ratio of the abnormal Meibomian gland secretions in the eye of the subject having Meibomian gland dysfunction.

2. The method of claim 1 wherein said compound is selected from the following structures:

3. The method of claim 1 , wherein the number of plugged Meibomian glands is decreased after treatment.

4. The method of claim 1 , wherein tear film break up time is increased after treatment.

5. The method of claim 1 , wherein Meibomian gland secretion viscosity is decreased after treatment.

6. The method of claim 1 , wherein Meibomian gland secretion transparency is increased after treatment.

7. The method of claim 1 , wherein the time period between Meibomian gland secretions is reduced after treatment.

8. The method of claim 1 , wherein said administering comprises topically applying said pharmaceutical product to the margins of the eye of said subject, wherein said pharmaceutical product is an ophthalmic solution, suspension, elixir, gel, ointment or cream.

9. The method of claim 1 , wherein said administering comprises orally administering said pharmaceutical product, wherein said pharmaceutical product is a tablet or a capsule formulation.

10. The method of claim 1 , wherein said method comprises reducing the sensation of a foreign body in the eye of the subject.

11. The method of claim 10 , wherein said compound is selected from the following structures:

12. The method of claim 10 , wherein said administering comprises topically applying said pharmaceutical product to the margins of the eye of said subject, wherein said pharmaceutical product is an ophthalmic solution, suspension, elixir, gel, ointment or cream.

13. The method of claim 10 , wherein said administering comprises orally administering said pharmaceutical product, wherein said pharmaceutical product is a tablet or a capsule formulation.

14. The method of claim 1 , wherein said Meibomian gland dysfunction comprises redness of the eyelid margin of the subject.

15. The method of claim 14 , wherein said compound is selected from the following structures:

16. The method of claim 14 , wherein said redness is reduced and measured photometrically or visually.

17. The method of claim 14 , wherein said administering comprises topically applying said pharmaceutical product to the margins of the eye of said subject, wherein said pharmaceutical product is an ophthalmic solution, suspension, elixir, gel, ointment or cream.

18. The method of claim 14 , wherein said administering comprises orally administering said pharmaceutical product, wherein said pharmaceutical product is a tablet or a capsule formulation.

19. The method of claim 1 wherein said method comprises improving tear film break up time.

20. The method of claim 19 , wherein said compound is selected from the following structures:

21. The method of claim 19 , wherein the tear film break up time is increased after treatment.

22. The method of claim 19 , wherein the tear film break up time is decreased after treatment.

23. The method of claim 19 , wherein said administering comprises topically applying said pharmaceutical product to the margins of the eye of said subject, wherein said pharmaceutical product is an ophthalmic solution, suspension, elixir, gel, ointment or cream.

24. The method of claim 19 , wherein said administering comprises orally administering said pharmaceutical product, wherein said pharmaceutical product is a tablet or a capsule formulation.

25. The method of claim 1 , wherein said method comprises improving plugging of Meibomian glands.

26. The method of claim 25 , wherein said compound is selected from the following structures:

27. The method of claim 25 , wherein the plugging of Meibomian glands is decreased after treatment.

28. The method of claim 25 , wherein the redness of the eyelid margin is reduced after treatment.

29. The method of claim 25 , wherein said administering comprises topically applying said pharmaceutical product to the margins of the eye of said subject, wherein said pharmaceutical product is an ophthalmic solution, suspension, elixir, gel, ointment or cream.

30. The method of claim 23 , wherein said administering comprises orally administering said pharmaceutical product, wherein said pharmaceutical product is a tablet or a capsule formulation.

31. The method of claim 1 , wherein said method comprises altering the phase transition temperature of lipids in tears.

32. The method of claim 31 , wherein said compound is selected from the following structures:

33. The method of claim 31 , wherein the phase transition temperature is decreased after treatment.

34. The method of claim 31 , wherein said administering comprises topically applying said pharmaceutical product to the margins of the eye of said subject, wherein said pharmaceutical product is an ophthalmic solution, suspension, elixir, gel, ointment or cream.

35. The method of claim 31 , wherein said administering comprises orally administering said pharmaceutical product, wherein said pharmaceutical product is a tablet or a capsule formulation.

36. The method of claim 1 , wherein said method comprises reducing ocular or conjunctival staining.

37. The method of claim 36 , wherein said compound is selected from the following structures:

38. The method of claim 36 , wherein said administering comprises topically applying said pharmaceutical product to the margins of the eye of said subject, wherein said pharmaceutical product is an ophthalmic solution, suspension, elixir, gel, ointment or cream.

39. The method of claim 36 , wherein said administering comprises orally administering said pharmaceutical product, wherein said pharmaceutical product is a tablet or a capsule formulation.

40. The method of claim 1 , wherein said method comprises improving burning and/or itching in the eye.

41. The method of claim 40 , wherein said compound is selected from the following structures:

42. The method of claim 40 , wherein the burning and/or itching in the eye is reduced after treatment.

43. The method of claim 40 , wherein said administering comprises topically applying said pharmaceutical product to the margins of the eye of said subject, wherein said pharmaceutical product is an ophthalmic solution, suspension, elixir, gel, ointment or cream.

44. The method of claim 40 , wherein said administering comprises orally administering said pharmaceutical product, wherein said pharmaceutical product is a tablet or a capsule formulation.

45. The method of claim 1 , wherein said method comprises reducing the frequency of administration of artificial tears to the eye.

46. The method of claim 45 , wherein said compound is selected from the following structures:

47. The method of claim 45 , wherein said administering comprises topically applying said pharmaceutical product to the margins of the eye of said subject, wherein said pharmaceutical product is an ophthalmic solution, suspension, elixir, gel, ointment or cream.

48. The method of claim 45 , wherein said administering comprises orally administering said pharmaceutical product, wherein said pharmaceutical product is a tablet or a capsule formulation.

49. The method of claim 1 , wherein said method comprises reducing the requirement of steroid therapy to the eye.

50. The method of claim 49 , wherein said compound is selected from the following structures:

51. The method of claim 49 , wherein said administering comprises topically applying said pharmaceutical product to the margins of the eye of said subject, wherein said pharmaceutical product is an ophthalmic solution, suspension, elixir, gel, ointment or cream.

52. The method of claim 49 , wherein said administering comprises orally administering said pharmaceutical product, wherein said pharmaceutical product is a tablet or a capsule formulation.