1 Department of Ophthalmology, Reference Centre of the Ministry of Health of the Republic of Croatia for Paediatric Ophthalmology and Strabismus, University Hospital "Sveti Duh", Sveti Duh 64, Zagreb, Croatia.
2 Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia.
3 Faculty of Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia.
4 Department of Ophthalmology, Reference Centre of the Ministry of Health of the Republic of Croatia for Paediatric Ophthalmology and Strabismus, University Hospital "Sveti Duh", Sveti Duh 64, Zagreb, Croatia. mbusic@kbsd.hr.
5 Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia. mbusic@kbsd.hr.
6 Faculty of Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia. mbusic@kbsd.hr.