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.
A Brooklyn native, Raquel moved to Durham, then Greensboro area to attend UNCG and never left. When she isn’t at work, she spends most of her free time gaming, live streaming and organizing virtual community nights.