1. Department of Ophthalmology, General Hospital of Patras “Agios Andreas”, Patras, Greece (Chairman: Dr. G. Vassilopoulos)
2. Department of Ophthalmology, Royal Free London NHS Foundation Trust, London, United Kingdom (Chairman: , S. Althauser)
3. Ophthalmology, Surgical Unit, General Hospital of Aigio, Aigio, Greece (Chairman: Dr. G. E. Papadopoulos)
4. Ophthalmological Center of Rive, Geneva, Switzerland (Chairmen: Dr. P. M. Desmangles, Dr. M. A. Matter)