1. Department of Clinical and Developmental Neuropsychology, University of Groningen, Groningen, the Netherlands;
2. Royal Dutch Visio, Knowledge, Expertise and Innovation, Centre of Expertise for Visually Impaired and Blind People, Huizen, the Netherlands;
3. Royal Dutch Visio, Rehabilitation and Advice, Centre of Expertise for Visually Impaired and Blind People, Haren, The Netherlands