Study Status: Recruiting
Recruit Status: Recruiting
Study Type: Observational
Official Title: Rate of Progression in USH2A Related Retinal Degeneration
Brief Summary: The overall goal of this project is to characterize the natural history of disease progression in patients with USH2A related retinal degeneration associated with congenital hearing loss (Usher syndrome type 2a) or non-syndromic retinitis pigmentosa (RP39).