Polyneuropathy, Deafness, Ataxia, Retinitis Pigmentosa, and Cataract (PHARC)

This program offers U.S. clinicians access to comprehensive genetic testing for patients with suspected inherited retinal diseases, including RP, CRD, LCA, Stargardt disease, and other IRDs. Testing is also appropriate for asymptomatic individuals with a family history of IRD or a known pathogenic variant in a relevant gene, supporting diagnosis, risk assessment, and patient management.