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 orthokeratology, hybrid, and scleral contact lens fits. He most recently has been working with the younger demographic for myopia control.
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. Susan Brown began working in various locations throughout Southern California after receiving her degree and 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.
Dr. Brown and her husband have a son who was born in 2011 and a daughter who was born in 2013.
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. 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, sons Davis, Jackson, and daughter Presley. She enjoys hiking, traveling, baking, watching movies and dining.
Dr. Sarah Onaga (previously Dr. Sarah Kim) joined Old Town Tustin Eyecare in June of 2017. She completed her undergraduate studies at University of California, Irvine and received her doctor of optometry degree at Southern California College of Optometry with Beta Sigma Kappa honors. She is glaucoma certified to diagnose, manage and treat glaucoma.
She completed her externship training at the UECLA clinic in downtown Los Angeles, the Veterans Affair Hospital in Las Vegas, HuHuKam Indian Health Service Hospital in Arizona and Ketchum Health Clinic in Anaheim. Her training includes specialty contact lenses, pediatric examinations, diagnoses and treatment of glaucoma as well as diabetic eye examinations. She lives in Irvine with her husband and canine baby. She enjoys golfing, cooking, weight training and traveling. Her goal is to visit all the National Parks in the U.S.
She is currently out on maternity since giving birth to her first child in November 2021. She will be returning to the office beginning of 2022.
Darren Brown, O.D.
Monday: 9 am - 5 pm
Tuesday: 10 am - 6 pm
Wednesday: 9 am - 5 pm
Thursday: 10 am - 6 pm
Friday: 9 am - 5 pm
Saturday: 9 am - 2 pm