Dr. Douglas M. Wisner was born in Maryland and attended Elizabethtown College in central Pennsylvania, where he studied physics with minors in chemistry and biology, and graduated with honors. He then attended Penn State College of Medicine in Hershey, Pennsylvania where he was elected to Alpha Omega Alpha. His internship was served at Albert Einstein Medical Center in Philadelphia and he completed his residency in ophthalmology at Wills Eye Hospital. Dr. Wisner was chief resident during his final year at Wills.

Dr. Wisner serves as the Director of the Cataract and Primary Eye Care Service at Wills Eye Hospital where he enjoys teaching both medical students and residents on a weekly basis. He directs the Measey Ophthalmic Surgical Training (MOST) Lab at Wills Eye, instructing young surgeons in the art and science of ocular microsurgery, and serves on numerous committees. He is an assistant professor at Thomas Jefferson University and a member of the staff of Chestnut Hill Hospital and Thomas Jefferson University Hospital. Dr. Wisner is a board certified ophthalmologist, a member of the American Academy of Ophthalmology, American Society of Cataract and Refractive Surgeons, and the American Medical Association.  He has authored or co-authored numerous papers and textbook chapters. His primary area of research interest is in surgical training and technique/systems improvement.

Dr. Wisner joined the practice in 2012 and rapidly partnered. In his practice of comprehensive ophthalmology, he sees patients with ocular disease and is comfortable diagnosing and treating patients with a wide variety of conditions. His surgical interests include cataract and anterior segment surgery. He also performs laser refractive eye surgery (LASIK/PRK) and minimally invasive glaucoma surgery (MIGS). He has a particular interest in advanced technology intraocular lenses and complex anterior segment surgery including cataract surgery after LASIK, retinal detachment or trauma, scleral fixated intraocular lens implants, and iris repairs.

He is involved in international ophthalmology and has made mission trips to Ecuador, Kenya and Ghana. He is on the advisory board for Wills Eye Academic Global Ophthalmology, which sends physicians in training abroad in order to train local eye surgeons, develop a love for service, learn new techniques, and facilitate collaborative research. His philosophy of practice emphasizes patient centered care to improve quality of life through the restoration and improvement of vision.