Dr. Vincent McMahon established his private practice in Keene in 1979. Previously he worked as an associate of Dr. G. Burt Homes, then President of the American Optometric Association, where he participated in contact lens research for Bausch and Lomb. As a result of his quest for advancement, Dr. McMahon became licensed for Diagnostic Pharmaceuticals in 1985 and Therapeutic Pharmaceuticals in 1989. A member of the National Glaucoma Society, he also was awarded Glaucoma treatment certification in 2003. He maintains membership in the New Hampshire Optometric Association, the American Optometric Association, the AOA's Contact Lens and Sport Vision Sections, and the International Association of Sports Vision. He is also a member of the Neuroptometric Rehabilitation Association.

Dr. McMahon received BS degrees in both Psychology and Biology from the University of Delaware, where he was a member of PSI-CHI, the National Psychology Honor Society. He then attended the New England College of Optometry in Boston. He graduated in 1976 Cum-Laude, ranking 3rd in his class and was a member of the National Optometry Honor Society.

Dr. McMahon currently serves on the board of the Keene Racquet Club and is a member of the Keene Chamber of Commerce. His hobbies include playing tennis, exercising, and computers.

Dr. Robert Tyszko

O.D. F.A.A.O. received a Bachelor of Arts from the University of New Hampshire in May of 1989. His Optometry degree is from the New England College of Optometry in Boston in May of 1993. He completed a Postgraduate Optometry Residency Program in Ocular Disease at the New England College of Optometry.

Tyszko served as a Clinical Instructor at the University of Arizona College of Medicine from April 1998 to September of 2001. He was a clinical instructor in Optometry, while completing his optometric residency from July 1993 to June 1994. From July 1994 to May 1999, he was the Chief of Optometry at the Tuscon Area Indian Health Service. He is the Director of Optometric clinical Education at the Martin Army Community Hospital. Dr. Tyszko currently holds optometry licenses in New Hampshire, Arizona, Massachusetts and Georgia, and has published numerous scholarly articles in the following journals: International Congress of Eye Research, Investigative Ophthalmology, Optometry and Vision Science, Journal of the American Optometric Association, The Association for Research in Vision and Ophthalmology, Optical Society of America, and the Southern Journal of Optometry.

Dr. Tyszko lives with his wife in Milford, New Hampshire and enjoys exercise and competitive biking.