Dr. Leng is a board-certified ophthalmologist and specializes in vitreoretinal diseases and surgery. He is the Director of Ophthalmic Diagnostics and Clinical Professor of Ophthalmology at the Byers Eye Institute at Stanford at the Stanford University School of Medicine in Palo Alto, CA. Dr. Leng has an active medical and surgical practice, enjoys training medical students, residents and fellows, and is heavily involved in scientific research. His outside interests include aviation, social media and entrepreneurship.