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Vision Source - Eye Center of the Triad
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About Us

Meet Eye Doctors of Greensboro and Oak Ridge

The leading provider of quality vision care products and personalized optometric services in Greensboro and Oak Ridge.

Since 2003, Vision Source Eye Center of the Triad has been the leader and preferred provider of quality vision care products and personalized optometric services to our patients in Greensboro and the surrounding areas. Our experienced doctors and staff offer comprehensive vision examinations and specialize in the diagnosis and treatment of a wide array of eye diseases, conditions, and problems.

In our mission to provide the best eye care services possible, our doctors use only the most advanced, state-of-the-art diagnostic technology and eye care products available. We are committed to educating our patients and providing personalized eye care services to the people of Greensboro and Oak Ridge. At Vision Source Eye Center of the Triad, you will find eye care professionals who genuinely care about your health and are dedicated to providing exceptional personal service to everyone who walks through our door.

Schedule an appointment with our doctors at our Greensboro and Oak Ridge optometrist office and give your vision the level of care and attention it deserves.

Our team believes that vision care should be accessible and affordable to everyone regardless of insurance status. If you don’t have insurance, or not the best insurance coverage, our membership plans can save you hundreds. Discover your savings here!

Our Staff

Meet the experienced and friendly staff who make Vision Source Eye Center of the Triad the leading provider of vision care products and services in Greensboro and Oak Ridge.

Timothy Koop, O.D.

Timothy Koop, O.D.

Dr. Koop grew up in Jenison, Michigan. He studied Psychology at Calvin College in Grand Rapids, Michigan prior to attending Illinois College of Optometry in Chicago. Dr. Koop received his Bachelor of Science of Visual Sciences degree as well as his Doctor of Optometry Degree in 1996.
 
Dr. Koop has a deep interest in myopia progression and its effect on our younger population and directs our myopia control center. He also has advanced training in dry eye treatments.
 
Dr. Koop moved to Greensboro in 2000 and has been the owner of Vision Source Eye Center of the Triad since 2003. He lives in Greensboro with his wife, Angela and 2 children Carly and Sam. He is a die-hard University of Michigan fan as well as loyal Detroit Lions, Tigers, and Red Wings fan. 
Angela Martinek, O.D.

Angela Martinek, O.D.

Dr. Martinek grew up in Greensboro, NC, where she attended Grimsley High School. She received her Bachelor of Science degree in Zoology from North Carolina State University in 1992. She attended Illinois College of Optometry in Chicago where she received her Doctor of Optometry and Bachelor of Science in Visual Sciences degrees in 1996.
 
Dr. Martinek moved to Greensboro in 2000 and has been in private practice since. She and her husband, Dr. Timothy Koop, own Vision Source Eye Center of the Triad.
 
Dr. Martinek lives in Greensboro with her husband Tim, and children Carly and Sam. She enjoys following sports, especially NC State football and basketball and is an avid Chicago Cubs baseball fan.
Angela Petracca, O.D.

Angela Petracca, O.D.

Dr. 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, daughter Sutton and their two dogs. She grew up watching hockey and is a new supporter of the Carolina Hurricanes.

Lisa

Lisa

Office Manager

Lisa joined Vision Source Eye Center of the Triad in November 2015 with over 20 years of management and operational experience. Originally from Nashville, TN she now calls Greensboro home. In her spare time Lisa enjoys live music, photographing airshows, singing in the car and cheering on her beloved TN Volunteers. GO VOLS!

Christine

Optician, Optical Manager

Ashley

Optician
Juliana

Juliana

Optician

Juliana is a Greensboro native and NC State University graduate with a passion for healthcare and helping people see clearly every day! When she's not at work, she enjoys traveling to New York, spending time with family and friends, and volunteering. 

 

 

Arielle

Arielle

Optometric Technician

Arielle joined Vision Source Eye Center of the Triad in 2022.  In addition to her position as an Optometric Technician, Arielle also assists Dr. Koop with our specialized Dry Eye Treatments.   Arielle loves animals and has a menagerie of pets that keep her busy in her spare time. 

Amber

Amber

Optometric Technician

Amber joined Vision Source Eye Center of the Triad in August of 2022 after moving from the Ashville area with her husband and daughter. She is an avid owl lover! In her free time she loves spending time with her family exploring Greensboro, playing with her 3 Guinea Pigs, rocking out to some good music, and watching horror flicks.

Genean

Optometric Technician

Originally from Norfolk, VA, Genean has a fraternal twin sister! She loves her family, her fur baby Journey, coffee, writing reviews, red lipstick, and making others smile when she can. She has worked in the optometric field for 10 years and she always learns something new at each place of employment.  

Anna

Anna

Optometric Technician

Raised in the Triad, Anna joined Vision Source Eye Center of the Triad in 2024 after living in Asheville and completing her undergrad at UNCG.

She loves snowy days, her three cats and drinking boba. In her free time you can always find her playing video games or curled up with her cats watching horror movies. 

Savannah

Front Desk

Savannah joined Vision Source Eye Center of the Triad in August 2024 and is a recent graduate in Esthetics.  She has a passion for exploring the world, sipping coffee and all things pink! In her spare time she enjoys attending concerts with her friends and family.

Kelley

Front Desk
Karen

Karen

Insurance/Billing Specialist

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.