1. Department of Neurology, 10th Military Research Hospital and Polyclinic, Bydgoszcz, Poland
2. Sanitas – Neurology Outpatient Clinic, Bydgoszcz, Poland
3. Department of Ophthalmology, University of Warmia and Mazury, Olsztyn, Poland
4. Institute for Research in Ophthalmology, Foundation for Ophthalmology Development, Poznan, Poland