Skip to main content
Home » Our Doctors

Our Doctors

Schertz eye care professionals specialize in understanding how the human eye really works, as well as diseases and conditions that affect your vision—many of which do not always have obvious symptoms. Schertz Eye doctors know how age and risk factors affect vision over time for young and old, and they understand the benefits and features of corrective lenses, both as eyeglass lenses and contact lenses.

Meet Your TSO Schertz Eye Doctors:

Our Schertz optometrist takes the time to explain the results of your Schertz eye exam, describe your options, listen to your eye care needs and explain our eye care services. Because maintaining good eye health is an ongoing partnership, we encourage you to ask questions and share your health information, which could be vital to monitoring, diagnosing and treating potential vision problems.

Dr. Leigha M. Nielsen, O.D., FCOVD

Doctor photo

Dr. Leigha M. Nielsen graduated with honors from the University of Houston College of Optometry. She also holds degrees in Biology and Business Management. During the course of her studies, she participated in research focusing on keratoconus, a degenerative eye disease, which was presented at the Associates for Research in Vision and Ophthalmology (ARVO) and the American Academy of Optometry (AAO).

Her professional memberships include the Texas Optometric Association, the American Optometric Association, and the Bexar County Optometric District Society. Dr. Nielsen practices full-scope Optometry and works with patients of all ages, specializing in standard and specialty contact lens fittings, minor ocular surgeries, diagnosis and treatment of amblyopia, anterior segment pathologies, cataracts, glaucoma, and retinal pathologies. She also handles a great deal of refractive corrective surgery co-management and cataract surgery co-management.

A strong believer in community and family, Dr. Nielsen plays an active role in the city of Schertz where she owns and practices at Texas State Optical, and is excited to take that same approach to her new location in New Braunfels. Both of these locations specifically highlight the importance of caring for the eyes of the entire family with specific pediatric care designed to provide children with comprehensive testing and therapy to give them every advantage in life.

Children having that ability to confidently go to school and learn without the struggles and disadvantages vision related problems can incur is why she has relocated her full-service vision therapy clinic, Nielsen Vision Development Center, to be housed at Texas State Optical – Oak Run. By providing every option to parents and their families under one roof, we can ensure that no half measures are taken when treating a child’s vision.

Dr. Nielsen will always take the time to explain the results of your eye exam, go over your options and listen to your eye care needs. Because maintaining good eye health is an ongoing partnership, we encourage you to ask questions and share your health information, which could be vital to monitoring, diagnosing and treating potential vision problems.

Dr. Michael Castro

Dr. Castro picture small Dr. Michael Castro is a graduate of the UIW Rosenberg School of Optometry. He earned his undergraduate degree in Accounting from Texas A&M University in College Station.

During his training, he focused on treatment of ocular diseases including management in diabetic retinopathy, glaucoma and macular degeneration. He is also well-versed in the treatment of diseases of the anterior segment and cornea with a particular interest in dry eye management.

His professional memberships include the Texas Optometric Association, the American Optometric Association and the Bexar County Optometric Society.

Meet Your TSO Shertz Eye Care Staff

Our Schertz eye clinic staff is our greatest asset. They are excited about what they do, and they care personally about getting the best results for our patients.

Our TSO receptionists will try to accommodate your busy schedule by finding appointments that suit your needs. We will help you understand your insurance coverage and if financial arrangements are necessary, we will be glad to help you develop a plan to make your vision care treatment possible.

Erica – Admin Team Lead

Employee photos, Erica L.

Meet Erica! First introduced at our previous Vision Therapy clinic in Selma, Erica has grown with our practice and has continued to bring our company values to our patients. With over two years of experience in both our Vision Therapy clinic and Texas State Optical, she brings the resources needed to provide quality family eye care.

Erica resides in the San Antonio area and has a 13 year old daughter she spends her free time with. Other activities she is involved in include painting, cooking and reading books.

If you haven't had the opportunity to meet her yet, she will be happy to welcome you to our office where you will feel right at home.

Valerie – Lab Manager


Valerie began her optical career in 2004 and earned certification through the American Board of Opticianry in 2010. She has experience in all areas of optometry including patient testing, contact lens fitting, frame-styling, insurance and fabrication of glasses in the lab.

As the lab manager, Valerie is focused on making sure your finished product is the perfect solution for your life. Her goal is to provide each patient with personalized eye care while upholding the prompt and professional service you deserve.

She likes to spend her free time on outdoor hiking adventures, watching football, taking fun family trips and meeting new friends. She also enjoys painting, reading and watching scary movies!


Erick – SuperTech

Employee photos ErickMeet Erick! As one of our SuperTechs, he will be your personal guide through your office visit. From helping you understand the details of your pre-test workup to fitting you in the best eyewear for your lifestyle, you will feel taken care of from start to finish.

In his free time, Erick loves to sing and write music, drawing inspiration from the 90's-2000's. When he was a kid, he planned on being a secret agent like Agent Cody Banks or one of the Men In Black! Luckily for us, he chose to bring his special set of skills here! His favorite activities are being in the water with his friends and significant other and trying out the local restaurants for good food and drinks!

Make sure to say hi when you're in, we are sure he will put a smile on your face!

Bill – Optician

Employee pic BillMeet Bill! As one of our Opticians, he works to provide you with an exceptional shopping experience. From helping you understand the details of prescription to fitting you in the best eyewear for your lifestyle, you can be sure to feel comfortable with your choices.

In his free time, Bill enjoys photography and editing pictures. He has been in the optical world for over 25 years and considers the relationships he creates with patients the best part of his day.

He always makes us smile and we are sure he will do the same for you!

Nancy- Medical Tech

Employee photos, NancyMeet Nancy! As our Medical Tech, she will be involved in making sure your special testings are handled with expertise and care.

Nancy started her career with our practice in the summer of 2019, and she has used her time here to make lasting connections and learn how to utilize advancements in medical eye care to treat our patients.

We are sure that her soft demeanor and happy attitude will help you have the best experience possible when you visit!

Jacob – Patient Care Coordinator

JacobMeet Jacob! As our Patient Care Coordinator he will help answer any questions you may have throughout the course of your visit. A friendly face, you are sure to quickly feel taken care of when you meet him.

In his free time, Jacob is both a singer and gaming enthusiast. For example, on the weekends he loves to visit the local karaoke centers and put his singing talents on full display! He is known around the office for his quick wit and creative banter, particularly when it comes to topics concerning art and world history, his knowledge of these subjects has earned him multiple awards in the local Trivia Night circuits.

His mantra - Always be kind to others, even if they aren't kind back - will ensure that you will always be treated with the utmost respect. An all around interesting person, we are sure you will enjoy his company and leave with a smile on your face

Michael – Managing Director

Enployee pics mlMichael has worked with Dr. Nielsen for over three years, helping manage all aspects of her businesses and acting as her representative for the company. With over 11 years of experience as a personal and executive assistant, Michael brings structure and organization to each practice, allowing the doctors to focus on providing excellent patient care for you and your family. While currently spending the majority of his time in our new Veramendi location, he can also be found at Dr. Nielsen’s Texas State Optical in Schertz where we continue to bring multi-generational family eye care to our neighboring community.

Michael and his wife have two dogs, a labrador and maltese, and have recently built a house in New Braunfels where they are happy to call home. When scheduling free time, he and his wife love traveling, exploring different cultures and foods, and meeting new people.


Schedule an Appointment

Call (210) 361-0047

Schedule an Appointment

Call (210) 361-0047

3.30 Hours sz