1. Institute of Optics and Optometry, University of Social Science, 121 Gdanska Str., 90-519 Lodz, Poland
2. Provisus Eye Clinic, 112 Redzinska Str., 42-209 Czestochowa, Poland
3. Doctoral School, Medical University of Warsaw, 61 Zwirki and Wigury Str., 02-091 Warsaw, Poland
4. Department of Analyses and Strategies, Ministry of Health, 15 Miodowa Str., 00-952 Warsaw, Poland
5. Department of Ophthalmology, Center of Postgraduate Medical Education, 231 Czerniakowska Str., 01-416 Warsaw, Poland
6. Hygeia Medical Clinic, Department of Ophthalmology, 80-286 Gdansk, Poland
7. Helsinki Retina Research Group, University of Helsinki, 00014 Helsinki, Finland