1. Department of Ophthalmology University Medical Centre Utrecht Utrecht The Netherlands
2. Department of Otorhinolaryngology and Head & Neck Surgery University University Medical Centre Utrecht Utrecht The Netherlands
3. Brain Centre University Medical Centre Utrecht Utrecht The Netherlands
4. Department of Ophthalmology, Amsterdam UMC Location University of Amsterdam Amsterdam The Netherlands
5. Department of Radiology Elisabeth‐TweeSteden Hospital Tilburg The Netherlands
6. University of Leicester Ulverscroft Eye Unit Leicester UK
7. Department of Neuro‐Oncology Princess Máxima Centre for Paediatric Oncology Utrecht The Netherlands