Due to inclement weather we will not be open on Wednesday March 21.
We will reopen on Thursday March 22 time to be announced
info@extonvisioncenter.com | 121 John Robert Thomas Dr, Exton, PA 19341
Exton Vision Center
Accepting New Patients
In the network with most insurance plans

Local Optometrist in Exton, Pennsylvania

When you visit the Exton Vision Center in Chester County, Pennsylvania you will receive the best in customer service from your entry to your examination. During your initial consultation, you will undergo a routine vision exam, medical testing, and assistance with eyewear. Patients at our vision center have access to a range of vision services with the help of our experienced team. Whether you are a new patient or returning you will be met with prompt, professional and friendly service.
Our mission is "to serve our patients with the extensive knowledge and expertise we have gained through continuing education with the latest technology our industry has to offer, while continually offering them the finest in customer service."


Alan M. Cohen, O.D. | Founder

Pennsylvania State College of Optometry, Doctor of Optometry -1958 | Philadelphia, Pennsylvania

Temple University, Bachelor of Science in Biology, Pre-Med Program- 1954 | Philadelphia, Pennsylvania
Pennsylvania Optometric Association – 35 year members

American Optometric Association, Chester – Delaware County Optometric Association
Life Membership in Alumni Association of PCO, Gamma Omega Phi Chapter President

Honor Society of POC

Allan Tocker, O.D. | Owner

Dr. Allan Tocker is a 1983 graduate of the Pennsylvania College of Optometry. He established a practice in his home town of Wilmington Delaware where he continues to see patients. Dr. Tocker built his practice through innovation, superior clinical skill and exceptional patient compassion. He now brings those skills to Exton Vision Center. Dr. Tocker has the insight to solve patient problems regardless of how severe. He specializes in the challenges that contact lens wearers experience when their eyes become dry. Many contact lens wears who have had discomfort in past or have given up contacts are now able to regain comfort and good vision.
Dr. Tocker has consulted extensively for Johnson and Johnson (the makers of Acuvue brand lenses), Alcon Pharmaceuticals and Bausch and Lomb. He has also lectured and authored numerous articles on contact lens related subjects.
We are sure you will enjoy Dr. Tocker's easy manner, while receiving the best care in satisfying your vision care needs.

Mark Cohen, ABOC | Owner | Optical Manager

Mark, who is a certified optician, has been our optical manager since 1989. He has vast knowledge of vision plans and offers the most up to date technology in ophthalmic lenses. His dispensary carries the latest in fashion and designer frames. He also provides safety and sports wear as well as prescription sunglasses to help patients with all of their eyewear needs. Mark is also skilled in refractive surgery consultation, visual field testing, and contact lens training.

Susan Lockland

Susan Lockland, OD has over 25 years of experience providing comprehensive eye care for patients of all ages. Dr Lockland holds a BS in Biology and Math from Wake Forest University and is an honors graduate from the New England College of Optometry in Boston, Ma where she earned her Doctorate of Optometry. Prior to joining Exton Vision Center Dr Lockland was an associate at a "top doc" ophthalmology practice in Arlington, Virginia, and at Chester County Opticians in Exton, Pa. Dr Lockland has also been a long-time volunteer at the Chester County Association for the Blind. In addition to comprehensive eye exams Dr Lockland also fits and prescribes contact lenses, screens and treats for eye disease and provides pre and post- LASIK and cataract care.

Dr Lockland resides in Downingtown and enjoys spending time with her family, cooking, gardening and beach vacations.