1. Department of Radiology, CJ Gorter MRI Center, Leiden University Medical Center, Leiden, The Netherlands
2. Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands
3. Department of Ophthalmology, Leiden University Medical Center, Leiden, The Netherlands
4. Department of Neurology, Radboud University Medical Center, Nijmegen, The Netherlands
5. The Rotterdam Eye Hospital, Rotterdam, The Netherlands
6. Department of Radiation Oncology, Leiden University Medical Center, Leiden, The Netherlands