Retina International (formerly known as the International Retinitis Pigmentosa Assoc. - IRPA) is a voluntary charitable umbrella association of 33 national societies each of which is created and run by people with Retinitis Pigmentosa (RP), Usher Syndrome, Macular Degeneration and allied retinal dystrophies, their families and friends. The main objective should be to promote the search for a treatment for Retinitis Pigmentosa (RP), Usher Syndrome, Macular Degeneration and allied retinal dystrophies. Main emphasis should be given to inherited forms of retinal dystrophies.