Director of the Department of Ophthalmic Oncology, Cole Eye Institute, Cleveland Clinic. He has published more than 450 scientific articles and has edited several textbooks (Clinical Ophthalmic Oncology, Ophthalmic Ultrasonography, Ophthalmic Radiation therapy and, FNA cytology of Ophthalmic Tumors). He is Editor of the Journal (Ocular Oncology and Pathology) and President of the International Society of Ocular Oncology (2015-2017).