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Doctors & Staff

Meet the experienced and friendly doctors and staff who make Vision Source Victoria the leading provider of vision care products and services in Victoria.


Oanh N. Tran, O.D.

Dr. Tran started practicing in Victoria since 2005. She received her doctorate of optometry from the University of Houston in 2002. She is a board-certified therapeutic optometrist trained in pediatrics, contact lenses, and eye diseases. Dr. Tran has experience with LASIK co-management.

Dr. Tran was born in Vietnam and is fluent in Vietnamese. She has three children: Roman, Chloe, and Amelia.


Thuyhong T. Dang, O.D.

Dr. Dang graduated from the University of Houston College of Optometry in 2002 and began practicing in Victoria in 2003. She is a therapeutic optometrist with a specialty in gas permeable contact lenses. Dr. Dang has training in diagnosing and treating eye diseases, family practice, low vision, and cataract consultation.


Esther Yew, O.D.

Dr. Yew graduated from the University of Texas at Austin with a degree in Biochemistry. She then continued her studies at the University of Houston College of Optometry. Dr. Yew is a board certified therapeutic optometrist providing examinations for glasses and contact lenses, cataract consultation, co-manages cataract, LASIK and other refractive surgeries. She is also a certified Optometric Glaucoma Specialist.

Outside of the clinic, Dr. Yew is a big foodie and enjoys traveling and spending time with her family. She speaks fluent Mandarin Chinese and Cantonese.