Our Leadership Team

John Trein, MD, MPH is a trained ophthalmologist, cataract and retina specialist with more than 20 years of clinical and surgical experience, complemented by extensive leadership in ophthalmic clinical development.

He serves as a medical monitor and scientific advisor for multiple global clinical trials, providing expertise in patient eligibility assessments, imaging and functional endpoint evaluation, safety oversight, and operational execution of innovative ophthalmic therapies.