Meet The Doctors

Dr. Cassey received her Doctorate of Optometry from the Pennsylvania College of Optometry at Salus University. She received her Bachelors degree in Biology and a minor in Business Administration from Saint Joseph’s University. In her free time she enjoys trying new recipes and spending time with her golden retriever. She is an avid Philadelphia sports fan.

Dr. Cassey received his undergraduate degree from Bucknell University and his Doctorate of Optometry from the Pennsylvania College of Optometry. He is a Diplomate of the American Board of Optometry. He was cited for Clinical Excellence for his Pediatric Internship at the Thomas P. Lynch Pediatric Unit of the Eye Institute in Philadelphia, PA, where he completed his residency in Primary Care. The faculty of the Pennsylvania College of Optometry cited Dr. Cassey for Clinical Excellence in the Preceptorship and External Educational programs. He is a former clinical examiner for the National Board of Examiners in Optometry. Dr. Cassey is a member of the Board of Trustees at Salus University serving as the Secretary to the board, a member of the Executive Committee, and Chairs the Institutional Policy and Curriculum Committee. He also serves as adjunct faculty at Salus University’s Pennsylvania College of Optometry. Dr. Cassey was cited by Primary Care Optometry News as one of their 250 Innovators in Optometry in October, 2016, by “practicing progressively and providing innovative patient care”*. He is a member of the Chester/Delaware County Optometric Society, Pennsylvania Optometric Association, and the American Optometric Association. He is an active member of his church and community.

Before practicing optometry, Dr. Toby Gershon grew up in Lower Merion PA and attended college at the University of Maryland. He graduated from the Pennsylvania College of Optometry in 2010 and joined Cassey's Optical in 2015. Outside of the office, Dr. Gershon currently lives in Philadelphia and enjoys outdoor activities like fishing, tennis, and hiking, and enjoys spending time with his wife and young daughter.

Dr. Mui Ly joined our practice in January 2009. She received her undergraduate studies at Temple University and graduated as a Doctor of Optometry from the Pennsylvania College of Optometry in May 2008. Mui was cited for Clinical Excellence for her Low Vision Internship at the William Feinbloom Low Vision Center at the Eye Institute in Philadelphia with special interests in contact lenses and pediatric vision care. She is married and has three sons.

Dr. Oliver received his Doctorate of Optometry degree from the Pennsylvania College of Optometry and his undergraduate degree from Virginia Tech. He completed his primary care residency training with the Veterans Administration Health Care System affiliated with the University of Alabama at Birmingham School of Optometry. Dr. Oliver has also held a faculty appointment at the State University of New York College of Optometry. Dr. Oliver is a member of the Pennsylvania Optometric Association, the American Optometric Association and is a Diplomate of the American Board of Optometry. He was also awarded a Clinical Excellence Citation by the faculty of the Pennsylvania College of Optometry.