1. Department of Metabolic Diseases Wilhelmina Children’s HospitalUniversity Medical Center UtrechtUtrecht University Utrecht The Netherlands
2. Bartiméus Diagnostic Center for Complex Visual Disorders Zeist The Netherlands
3. Department of Ophthalmology Amsterdam University Medical Center Amsterdam The Netherlands
4. Department of Ophthalmology University Medical Center GroningenUniversity of Groningen Groningen The Netherlands
5. Department of Psychology University of Groningen Groningen The Netherlands
6. Department of Ophthalmology University Medical Center UtrechtUtrecht University Utrecht The Netherlands