1. 2nd Department of Ophthalmology, Attikon University Hospital, National and Kapodistrian University of Athens, Athens, Greece
2. 1st Department of Ophthalmology, “G. Gennimatas” General Hospital, National and Kapodistrian University of Athens, Athens, Greece
3. Department of Clinical Biochemistry, Attikon University Hospital, National and Kapodistrian University of Athens, Athens, Greece