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Screening for problems in eyes of children study (SPECS)

The aim of this study is to compare the results of 2 methods for screening of eye function in children with the standard investigation by the orthoptist. The outcome of the tests and the time involved will be compared.Two screening methods will be…

A Multicenter, Prospective, Longitudinal, Observational Study in Children and Adults with Stargardt Disease Secondary to Mutation in the ABCA4 Gene

Primary Objectives• To evaluate prognostic factors of disease progression in subjects with Stargardt disease secondary to mutation in the ABCA4 gene • To further characterize the STGD1 patient population for future interventional clinical studies

NEW characterizing rate of progression in USHer syndrome (NEW-USH) study
a natural history study in patients with Usher syndrome

The study will help us to determine 1. the necessary type of (combined) examinations and 2. the sample size that is essential to evaluate (future) genetic therapy in Usher syndrome type 2 and USH2A associated nsRP.