Study of Usher Syndromes, Type 1 and Type 2

CompletedOBSERVATIONAL
Enrollment

200

Participants

Timeline

Start Date

June 30, 1993

Study Completion Date

August 31, 2002

Conditions
Retinitis Pigmentosa
Trial Locations (1)

20892

National Eye Institute (NEI), Bethesda

All Listed Sponsors
lead

National Eye Institute (NEI)

NIH