| 1. | Albinism (2 recruiting studies) |
| 2. | Amblyopia (3 recruiting studies) |
| 3. | Anophthalmos (1 recruiting study) |
| 4. | Behcet Syndrome (1 recruiting study) |
| 5. | Blepharitis (1 recruiting study) |
| 6. | Blepharospasm (1 recruiting study) |
| 7. | Blindness (4 recruiting studies) |
| 8. | Cataract (6 recruiting studies) |
| 9. | Choroid Diseases (1 recruiting study) |
| 10. | Choroidal Neovascularization (3 recruiting studies) |
| 11. | Choroiditis (1 recruiting study) |
| 12. | Coloboma (1 recruiting study) |
| 13. | Conjunctival Diseases (4 recruiting studies) |
| 14. | Conjunctivitis (4 recruiting studies) |
| 15. | Corneal Diseases (9 recruiting studies) |
| 16. | Corneal Neovascularization (1 recruiting study) |
| 17. | Corneal Opacity (1 recruiting study) |
| 18. | Corneal Ulcer (1 recruiting study) |
| 19. | Cytomegalovirus Retinitis (1 recruiting study) |
| 20. | Dacryocystitis (1 recruiting study) |
| 21. | Diabetic Retinopathy (5 recruiting studies) |
| 22. | Dry Eye Syndromes (4 recruiting studies) |
| 23. | Eye Abnormalities (1 recruiting study) |
| 24. | Eye Diseases (96 recruiting studies) |
| 25. | Eye Diseases, Hereditary (5 recruiting studies) |
| 26. | Eye Infections (1 recruiting study) |
| 27. | Eye Infections, Viral (1 recruiting study) |
| 28. | Eye Neoplasms (12 recruiting studies) |
| 29. | Eyelid Diseases (1 recruiting study) |
| 30. | Glaucoma (15 recruiting studies) |
| 31. | Glaucoma, Angle-Closure (1 recruiting study) |
| 32. | Glaucoma, Open-Angle (10 recruiting studies) |
| 33. | Iridocyclitis (1 recruiting study) |
| 34. | Iris Diseases (2 recruiting studies) |
| 35. | Iritis (2 recruiting studies) |
| 36. | Keratitis (6 recruiting studies) |
| 37. | Keratoconjunctivitis (1 recruiting study) |
| 38. | Keratoconjunctivitis Sicca (1 recruiting study) |
| 39. | Lacrimal Apparatus Diseases (5 recruiting studies) |
| 40. | Lens Diseases (4 recruiting studies) |
| 41. | Macular Degeneration (18 recruiting studies) |
| 42. | Macular Edema, Cystoid (1 recruiting study) |
| 43. | Microphthalmos (1 recruiting study) |
| 44. | Myopia (1 recruiting study) |
| 45. | Nystagmus, Pathologic (2 recruiting studies) |
| 46. | Ocular Hypertension (14 recruiting studies) |
| 47. | Ocular Melanoma (1 recruiting study) |
| 48. | Ocular Motility Disorders (4 recruiting studies) |
| 49. | Ophthalmoplegia (1 recruiting study) |
| 50. | Optic Nerve Diseases (8 recruiting studies) |
| 51. | Optic Nerve Glioma (5 recruiting studies) |
| 52. | Optic Nerve Neoplasms (5 recruiting studies) |
| 53. | Optic Neuritis (1 recruiting study) |
| 54. | Panuveitis (2 recruiting studies) |
| 55. | Papilledema (3 recruiting studies) |
| 56. | Refractive Errors (2 recruiting studies) |
| 57. | Retinal Degeneration (19 recruiting studies) |
| 58. | Retinal Detachment (1 recruiting study) |
| 59. | Retinal Diseases (33 recruiting studies) |
| 60. | Retinal Neoplasms (2 recruiting studies) |
| 61. | Retinal Perforations (1 recruiting study) |
| 62. | Retinal Vasculitis (1 recruiting study) |
| 63. | Retinitis (4 recruiting studies) |
| 64. | Retinitis Pigmentosa (2 recruiting studies) |
| 65. | Retinoblastoma (4 recruiting studies) |
| 66. | Retinoschisis (1 recruiting study) |
| 67. | Scleral Diseases (1 recruiting study) |
| 68. | Scleritis (1 recruiting study) |
| 69. | Sjogren's Syndrome (4 recruiting studies) |
| 70. | Stargardt's Disease (2 recruiting studies) |
| 71. | Strabismus (3 recruiting studies) |
| 72. | Supranuclear Palsy, Progressive (2 recruiting studies) |
| 73. | Uveal Diseases (7 recruiting studies) |
| 74. | Uveitis (7 recruiting studies) |
| 75. | Uveitis, Anterior (2 recruiting studies) |
| 76. | Uveitis, Posterior (1 recruiting study) |
| 77. | Vision Disorders (4 recruiting studies) |
| 78. | Vitreoretinopathy, Proliferative (1 recruiting study) |
