Together Everyone Achieves More

At Omni Vision Care delivering value to our patients has always been a group effort. You are greeted and checked in by one of our capable receptionists, assisted and screened by an optometric technician before you are seen by the eye doctor. At the end of your exam, an optician will walk you through the eyewear options. If you need prescription glasses, they are edged and sized by a technician at our in-house lab.

Our Happy Doctors

Thanh Tran, O.D.

About Dr. Tran

Dr. Thanh Tran received his Doctor of Optometry magna cum laude from the University of Houston College of Optometry. Also, during this time, he was elected to the Beta Sigma Kappa Optometric Honor Society where he often tutored fellow colleagues. He served as a Geometrical Optics and Ophthalmic Procedures Instructor with the Texas Optometry Career Opportunity Program (TEXOCOP) where he received an award for “Most Outstanding Professor” for his two years of teaching and was well respected by his students. Dr. Tran is an active member of the Texas Optometric Association and American Optometric Association.

In addition to a strong background in primary care optometry, Dr. Tran has extensive experience in the fitting of specialty contact lenses and management of anterior segment diseases. He has also participated in the co-management of cataract surgery, LASIK, and various refractive procedures. Furthermore, Dr. Tran received training in the management and treatment of many ocular diseases such as glaucoma, macular degeneration, dry eye, and retinopathies associated with diabetes and hypertension.

Dr. Tran was born in Vietnam but grew up in Houston, and he now resides in San Antonio, Texas. Outside of the office, Dr. Tran’s hobbies include fishing, volunteering and spending time with loved ones. He is also the creator, producer, and host of several Vietnamese reality programs.

Violet Ehiem-Negron, O.D.

About Dr. Ehiem-Negrón
Dr. Violet Ehiem-Negrón received her Doctor of Optometry in 2015 from the University of the Incarnate Word Rosenberg School of Optometry. Furthermore, she completed her clinical rotations at the San Antonio Veterans Affairs Medical Center (SAVAMC) and a private MD/OD practice. She also holds a Bachelor of Science in Kinesiology from the University of Houston.

Dr. Ehiem-Negrón completed a residency in Primary Care and Ocular Disease through the New Jersey Veteran’s Affairs Medical Center where she diagnosed and managed an array of ocular conditions ranging from corneal conditions, glaucoma, cataracts, and retinal diseases. Being able to detect systemic issues by viewing the health of the retina is of particular interest to Dr. Ehiem-Negrón.

In practice since 2015, Dr. Ehiem-Negrón enjoys getting to know her patients by discussing their eye health, addressing their visual needs, and providing them with clearer vision. She takes pride in educating the community about the importance of eye health and eye exams.

In her spare time, Dr. Ehiem-Negrón enjoys spending time with family and friends, and lives an active lifestyle through working out, traveling, exploring the city, volunteering, and watching her favorite movies.

Rebecca Sheeder, O.D.

About Dr. Sheeder
Dr. Rebecca Sheeder is an Optometric Glaucoma Specialist and Therapeutic Optometrist who received her Doctor of Optometry from the Rosenberg School of Optometry at the University of the Incarnate Word in San Antonio, Texas, in 2016. Dr. Sheeder also has a Bachelor of Science in Biology from the University of West Florida.

Dr. Sheeder completed a hospital-based residency in primary care and low vision rehabilitation at the Lake City Veterans Affairs Medical Center in Florida. Dr. Sheeder has always gravitated toward healthcare with her field of interest being ocular disease. Practicing since 2016, she remains fascinated by how much of an impact vision has on our lives. Dr. Sheeder particularly enjoys working with patients to find ways to improve their way of living through their sight.

In her free time, Dr. Sheeder enjoys spending time with her fiancé and two dogs, doing Pilates, and hiking.

Anna Pham, O.D.

About Dr. Pham
Dr. Anna Pham received her Doctor of Optometry from the University of the Incarnate Word Rosenberg School of Optometry in 2020. In addition, she holds a Bachelor of Science in Biochemistry from the University of Texas at Austin. Dr. Pham began practicing and serving the San Antonio community in 2020 and is a member of the American Optometric Association and the Texas Optometric Association.

Dr. Pham has a passion for Optometry that includes a special interest in family eye care, contact lens fitting, dry eye treatment, and myopia management. A few more of her professional skills include diagnosing, treating, and managing a full spectrum of refractive and ocular conditions. Her favorite aspect about practicing Optometry is that is allows her to meet patients and help change their lives through better vision.

In her free time, Dr. Pham enjoys traveling, hiking with her dog, and spending time with her loved ones.

Molly Wilson, O.D.

About Dr. Wilson

Molly Wilson, O.D. is a Texas native and graduate from the University of the Incarnate Word Rosenberg School of Optometry. The daughter of a Chiropractor, Dr. Wilson always knew she wanted to pursue a career in medicine. After going to the Optometrist at age 10 and having a great experience, the rest was history.

Dr. Wilson enjoys giving her patients the gift of sight and finds her profession very rewarding. In her free time, she sings in an all-female barbershop chorus and enjoys bowling and board games.

Luis Marquez, O.D.

About Dr.Marquez
Luis Marquez, O.D. received his Doctor of Optometry from the University of Houston in 1997 and earned his Bachelor of Science in Biology at St. Mary’s University.
Born and raised in El Paso, Texas, Dr. Marquez is an active member of the Texas Optometric Association and the American Optometric Association.
Dr. Marquez was inspired to become an optometrist after having his first eye exam and he remembers his optometrist’s bedside manner being caring and educational. Dr. Marquez says he enjoys meeting new people of all ages and concludes that you never know what an eye examination may uncover. Most times a spectacle correction may improve someone’s quality of life or save someone from undiagnosed conditions, such as brain tumors or diabetes.

Our Happy Staff

Jorge Alanis

Dorothy Easterling

Gilbert Garcia

Erick Juarez

Nicole Lobos

Shawn Martinez

Samantha Medellin

Taylour Moore

Analisa Munoz

Gerardo Munoz

Karizzma Rabern

Autumn Ransom

Patricia Rivera

Edna Rodriguez

Alondra Sandoval

Isabel Trevino

Jaime Vicencio

Jason Zambrano