Mary A. Johnson

Dr. Johnson is an Associate Professor in the Department of Ophthalmology and Visual Sciences in the University of Maryland School of Medicine, where she directs the Visual Electrodiagnostics Service. Her research focuses on how disease affects visual function in human patients and in animal models, and from these data she develops insights into the mechanisms of damage. Her current work implicates horizontal cell dysfunction in the etiology of photophobia in traumatic brain injury, and she developed an ERG protocol to measure this change.

Samantha Setter

Samantha Setter is a Certified Veterinary Technician and a Registered Laboratory Animal Technologist.  Mrs. Setter has a background working with many laboratory animal species in a pre-clinical and academic setting. She has experience in creating animal use protocols, collecting study data, and creating anesthetic protocols for a variety of technical and surgical procedures.  She is working at OSOD as an Ophthalmic Specialist performing various procedures including pachymetry and electroretinograms.