José-Alain Sahel is Professor of Ophthalmology at Pierre & Marie Curie University, Sorbonne Universities and Cumberlege Professor of Biomedical Sciences at the Institute of Ophthalmology-University College London, Chairman of the Departments of Ophthalmology at the Quinze-Vingts National Eye Hospital and the Rothschild Ophthalmology Foundation. He is founder and director of the ‘Institut de la Vision’ in Paris (18 principal investigators, more than 250 staff members). The primary focus of his research is understanding the mechanisms associated with retinal degeneration, together with conception, developing and evaluation of innovative treatments (medicinal products, gene therapy and stem-cell therapy, retinal prosthesis) for currently untreatable retinal diseases. José-Alain Sahel oversees more than 80 clinical trials and chairs a network of more than 90 European clinical trial centers on retinal diseases. He is Member of the Academy of Sciences-Institut de France, the German National Academy of Sciences Leopoldina and the Academia Ophthalmologica Internationalis.