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Our Colchester Doctors

Eye care professionals specialize in understanding how the human eye really works, as well as diseases and conditions that affect your vision – many of which do not have obvious symptoms. Eye doctors know how age and risk factors affect vision over time for young and old, and they understand the benefits and features of corrective lenses including eyeglasses and contacts.

Our optometrists take the time to explain the results of your eye exam, describe your options and listen to your eye care needs. Because maintaining good eye health is an ongoing partnership, we encourage you to ask questions and share your health information, which could be vital to monitoring, diagnosing and treating potential vision problems.

Dr.-Thomas-Dempsey

Dr. Thomas Dempsey

Dr. Tom Dempsey is a graduate of Lafayette College and  SUNY Optometry. Upon graduation in 1991, he followed his wife Wendy to Connecticut and began his career in eye care.  He joined Eye Care Associates in Prospect, CT as the practice's pathology and ocular disease specialist.  He took over Colchester...
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Dr. Alexandra Sadanowicz

Dr. Alexandra (Ola) Sadanowicz graduated from Loomis Chaffee School and went on to study Biology and Creative Writing in Waterville, ME and graduated cum laude in 2008.  She continued her education after college at the New England College of Optometry in Boston, and graduated as a member of the Beta...
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Dr. Zachary Tlumak

Dr. Zack Tlumak graduated from the University of Michigan in 2014 with a B.S. in Neuroscience and minor in Music. Following his undergraduate education, Dr. Tlumak obtained his Doctor of Optometry from the New England College of Optometry in Boston, where he served as Vice President of the Class of...
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Kathyann Lizotte

Ophthalmic Technician
Kathyann is our Ophthalmic Technician who will see you for pretest before our doctors complete your comprehensive eye exam. Kathyann meets and greets the patients in a warm welcoming manner to get them prepared to see the doctor. She will review your history and address any concerns. She also performs...
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Dr. Natalia Pisklak

Dr. Natalia Pisklak graduated cum laude from University of Massachusetts in Boston with a Bachelors of Science degree in Biology and minor in Chemistry. She then pursued a degree in Optometry at New England College of Optometry (NECO) in Boston. She was active with community service during her training including...
Colchester Eye Care
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