Charles Tressler, MD is a Senior Director in Worldwide Safety and Regulatory at Pfizer. Dr. Tressler is an ophthalmologist and received his medical degree from Hahnemann Medical College and Hospital in Philadelphia. He completed his Residency in Ophthalmology at Walter Reed Army Medical Center in Washington D.C. and his Glaucoma Fellowship at Yale University in Connecticut. Dr. Tressler has taught at the Kresge Eye Institute and the Uniformed Services University of the Health Sciences as Clinical Assistant Professor. He currently teaches at Yale University as a Clinical Instructor. He received his Bachelor of Science in Pharmacy at the University of Pittsburgh. Dr. Tressler is a member of the American Academy of Ophthalmology, American Glaucoma Society, Association for Research in Vision and Ophthalmology, and Society of Military Ophthalmologists. He has also authored numerous publications on various ophthalmology topics.