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

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.

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.

Lydia Han, O.D.

About Dr. Lydia Han
Lydia Han, O.D. received her Doctor of Optometry from the University of the Incarnate Word Rosenberg School of Optometry in 2021 and earned her Bachelor of Science in Biology from the University of California, Los Angeles in 2015.

Dr. Han specializes in low vision and contact lenses. While on a medical mission trip to Haiti, Dr. Han experienced first-hand the dire need for vision care. From this medical mission trip, Dr. Han was inspired to start improving people’s vision as an optometrist. Dr. Han strives to be an advocate for people with low vision, encouraging patients to fight for a brighter and better future, as well as functional vision that can be optimized to improve their quality of life.
As an optometrist, Dr. Han loves being able to help patients see better and feel better about their vision. Additionally, Dr. Han enjoys being able to constantly learn about life as she meets new patients, hear their stories and get to know her team members.

In Dr. Hans’s free time, she enjoys watching movies, golfing and travelling, as well as exploring and trying new food places.

Louis Peters , O.D.

About Dr. Peters

Louis Peters, O.D. received his Doctor of Optometry from the Pennsylvania College of Optometry in 1993 and earned his Bachelor of Science from the University of Houston.

Dr. Peters is experienced in a variety of specializations including pediatrics, learning disabilities and retinal diseases. Dr. Peters’ love for math and helping others inspired him to become an optometrist. Dr. Peters loves meeting new patients and building personal relationships with them to help achieve their unique eye health needs.

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