Sarah H. Van Tassel, M.D. is Director of the Glaucoma Service and Glaucoma Fellowship at Weill Cornell Medicine Ophthalmology. Dr. Van Tassel specializes in glaucoma evaluation and treatment, including medical management, laser, and surgical procedures. She also performs cataract surgery and is up-to-date on the latest advances in microinvasive glaucoma surgery (MIGS). A native of Missouri, Dr. Van Tassel completed
Archives: Our Staffs
Our Staff Description
David Solá-Del Valle MD
Dr. David Solá-Del Valle (known as Dr. Solá) is a glaucoma and cataract specialist. He became Chief Medical Officer at Chittick Eye Care and Associate Professor at the Carle Illinois College of Medicine in Champaign, IL in February 2024. He was assistant professor at Harvard Medical School until December 2023, where he taught residents, fellows, and medical students in addition
John Berdahl, MD
Practicing in Sioux Falls, SD is our board-certified ophthalmologist, John Berdahl, MD. He is widely regarded as one of the leading international cataract surgeons. He is one of the very few surgeons in the United States who is also fellowship trained in cornea, glaucoma, and refractive surgery. Dr. Berdahl has already performed more than 25,000 eye surgeries around the globe.
Aakriti Garg Shukla, MD
Dr. Shukla is the Leonard A. Lauder Associate Professor of Ophthalmology at Columbia University Medical Center. She received her medical degree at Columbia University College of Physicians & Surgeons, where she completed her ophthalmology residency and served as Chief Resident. She pursued further glaucoma subspecialty training at the Wilmer Eye Institute at Johns Hopkins University in Baltimore, MD. She was
Thomas V. Johnson III, MD, PhD
Dr. Johnson is a glaucoma specialist and a neuroscientist at the Johns Hopkins Wilmer Eye Institute. In addition to caring for patients with glaucoma, he leads a clinical research program that is investigating the use of remote eye pressuring monitoring to better understand intraocular pressure fluctuations in patients with glaucoma. In addition, he runs a translational research laboratory aimed and
Donald J. Zack, MD, PhD
Donald J. Zack, M.D., Ph.D., is the Guerrieri Professor of Genetic Engineering and Molecular Ophthalmology and co-director of the Center for Stem Cells and Ocular Regenerative Medicine (STORM) at the Wilmer Eye Institute. He is also a professor in the departments of Molecular Biology and Genetics, Neuroscience, and the Institute of Genetic Medicine. His lab studies the control of gene
Alon Harris, MS, PhD, FARVO
Professor Alon Harris is an internationally recognized expert and leader in the field of ocular blood flow and glaucoma. Dr. Harris’ academic specialties include novel approaches to glaucoma risk management, developing monitoring techniques for ocular hemodynamics and metabolism, mathematical modeling and artificial intelligence analysis of clinical and physiological biomarkers, investigating glaucoma theraputics, generic medications, and population-based studies. Professor Harris has
Barbara Calaba
Barbara was born in Michigan and grew up in various towns on the East Coast and in London, where she graduated from high school. She holds an MBA from Columbia University and a BA from Boston College. Barbara worked for ten years as a strategic brand planner in the advertising industry, working in the Paris, Milan and New York offices
Carole Darden-Lloyd
Carole Darden-Lloyd and her husband, Edward Lloyd have been married for 46 years and share one son and three grandchildren. Carole was born in Newark, NJ and grew up in neighboring Montclair. She received a BA from Sarah Lawrence College, followed by a MSW from Fordham University. She first worked in the field of foster care and then moved on
Adriana Di Polo, PhD
Dr. Di Polo is Full Professor in the Departments of Neuroscience and Ophthalmology at the University of Montreal and currently holds a Canada Research Chair in glaucoma and age-related neurodegeneration. She completed her Bachelor of Science in biology from the Universidad Central de Venezuela (Caracas, Venezuela) and her Doctorate in physiology from the University of California (Los Angeles, USA). Dr.