1. Second Department of Ophthalmology, Attikon University Hospital, Medical School, National and Kapodistrian University of Athens, 11528 Athens, Greece
2. First Department of Ophthalmology, “G. Gennimatas” Hospital, Medical School, National and Kapodistrian University of Athens, 11528 Athens, Greece
3. Third Department of Cardiology, Thoracic Diseases General Hospital Sotiria, Medical School, National and Kapodistrian University of Athens, 11528 Athens, Greece
4. Cardiovascular Division, Harvard Medical School, Brigham and Women’s Hospital, Boston, MA 02115, USA