Who We Are
The leading provider of quality vision care products and personalized optometric services in Greensboro and Oak Ridge.
Timothy Koop, O.D.
Prior to practicing in Greensboro, NC, Dr. Koop practiced in Saginaw, Michigan, and Wilmington, NC. In 2000, he joined Eye Care Associates at their Greensboro location. In January 2003, he and his wife, Dr. Angela Martinek, purchased the Greensboro and Oak Ridge practices and renamed it Vision Source Eye Center of the Triad. They then relocated the practice to its current location in November 2008.
Angela Martinek, O.D.
Angela Petracca, O.D.
Dr. Angela Petracca grew up in upstate New York and received her Bachelor of Science degree in Biology from SUNY Geneseo. She attended MCPHS University School of Optometry where she received her Doctor of Optometry in 2017.
After graduating, Dr. Petracca worked in Minneapolis, MN before moving to Greensboro in 2019. She joined Vision Source Eye Center of the Triad in November 2020 and is currently accepting new patients at both the Greensboro and Oak Ridge locations.
Dr. Petracca lives in the Sedgefield community with her husband, Joel and their two dogs. She grew up watching hockey and is a new supporter of the Carolina Hurricanes.
Administrator / Optician
Josef joined Vision Source Eye Center of the Triad in January 2017 and has over 35 years of expertise in the optical industry. Josef is originally from Savannah, Georgia. He and his wife, Carol, along with their three children have lived in Greensboro since 1990. In his spare time, Josef enjoys spending time with his family, cycling, and reading.
Karen joined Vision Source Eye Center of the Triad in September 2014 as the Insurance/Billing Specialist. Karen brought with her 20 years of customer service and insurance experience in Optometry. She relocated from Kinston, NC in 2005 to be closer to her daughter and family, which includes her favorite pastime of spoiling her 2 rambunctious grandsons. She also loves to get away to the beach occasionally for relaxation and fun.
Lisa joined Vision Source Eye Center of the Triad in November 2015 with over 20 years of management experience. Lisa was raised in both Nashville, TN and sunny South Florida and now resides in Greensboro with her family. In her spare time, Lisa enjoys reading, hiking, photography and collecting vinyl record.
In 2019, Christine joined the Vision Source Eye Center of the Triad team, contributing 6 years to the optical industry and a profound sense of customer service. Christine is originally from the Boston area and has lived up and down the east coast, all the way out to Minneapolis and the mid-west for a brief time. She enjoys travel, different cultures and is a major foodie. As an animal lover, She is a proud mom of two fur babies, her cat Storm and her Goldendoodle Thor. Christine is a Capricorn that enjoys hiking, dancing, karaoke and fine dining when she is not in the office. She also has done acting and performance monologues. Be sure to say hi to Christine while you are visiting our office, she is always more than happy to help you with your optical needs.
Annette hails from Beloit, Wisconsin. As a Dean Scholar, she studied Molecular Biology at the University of Wisconsin-Madison. After earning a Bachelor of Science in Visual Science and Doctor of Optometry at The Illinois College of Optometry, Annette worked with Lenscrafters, Sterling Optical, Eye Exam 2000, Jessen & Wesley, Lawrence Family Optical, and Charlotte Eye, Ear, Nose, and Throat. She loves to go on great adventures with her husband, Rob, and their two sons, Ricky and River. They love to bring along their polar white lab, Cooper, and their bossy Maltese, Mali. Musical theater, travel, photography, and glamping are her favorites.
Kesha joined Vision Source Eye Center of the Triad in May 2020 with over 20 years of experience as an Ophthalmic Technician, assisting in surgery and also working in optical. She relocated from West Virginia in 2020 and now resides in Greensboro with her husband. When she is not working, she spends her free time reading and enjoying her family.
Sheri joined Vision Source Eye Center of the Triad November 2020 as an Optometric Technician/Dry Eye Consultant, specializing in our Low Level Light Therapy and TempSure Treatments. She has a medical background certified as an EMT and a Phlebotomist since 2019. She relocated from Long Island, New York in 2014 and now resides in Greensboro with her family. When she is not at work she enjoys traveling, cooking, and painting.
Patti Leonard, ABO.
Patti joined Vision Source Eye Center of the Triad in September 2020 with over 22 years experience in opticianry. Working with patients is a great pleasure for her. During time off from work, she enjoys gardening and going to her “happy place”, The Beach.