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Doctors & Staff

Meet the experienced and friendly doctors and staff who make Old Town Tustin Eyecare a proud provider of vision care products and services in Tustin.


Dr. DerronDr. Darren M. Brown

Dr. Darren Brown graduated from the Southern California College of Optometry in 2004. Licensed and trained in the use of Therapeutic Pharmaceutical Agents, Dr. Brown is certified by the National Board of Optometry in the Treatment and Management of Ocular Disease. A clinical investigator who has conducted research for Vistakon and Advanced Medical Optics, Dr. Brown specializes in fitting an array of contact lenses, including toric, gas-permeable, and multifocal fits. Having assisted in LASIK procedures at top surgical centers in the Western United States, Dr. Brown offers his patients their most up-to-date refractive surgical options.


Dr. JoyDr. Joy Coloma

Dr. Joy Coloma was born in Savannah, Georgia, and raised in Orange County since she was 2 1/2 years old. She attended the University of California, Irvine, where she received her bachelor’s degree in biology. She earned her Doctor of Optometry degree from Southern California College of Optometry in 2004, along with classmates Drs. Darren and Susan Brown. She received her hands-on clinical training in externship programs at the VA Medical Center in Honolulu, Hawaii and Gallup Indian Medical Center in Gallup, New Mexico. Dr. Coloma is Board Certified in the Treatment and Management of Ocular Disease. Her vast practice experience includes working in group, solo and ophthalmological offices in Orange County and Inland Empire.

Dr. Coloma loves spending time with her family: husband Darrell, precious sons Davis & Jackson, baby girl Presley who arrived in February 2015 and lovable dog boxer, Baloo. She enjoys traveling, baking, watching movies and dining.


Susan 3Dr. Susan Brown

Dr. Susan Brown began working in various locations throughout Southern California after receiving her degree and recently joined her husband’s practice in 2010. She is certified in the treatment and management of eye diseases as well as fitting patients with the newest technology in contact lenses. She especially enjoys working with children to give them a thorough eye exam.

She met Dr. Darren Brown in optometry school and they have been married since 2007. During her free time she enjoys watching movies, cooking, and playing tennis. She and her husband have a son who was born in 2011 and a daughter who was born in 2013.