Ona Mae R. Shiroyama, O.D.

Completed her Bachelor's Degree in Biology at UCLA in 1975. 
Completed her Doctorate in Optometry at Illinois College of Optometry in 1979. 

Treatment and Management of Ocular Disease, 1994. 
Treatment and Management of Glaucoma, 2001. 
President Tri-county Optometric Society, 1997. 

Avid paddler in local outrigger racing canoe club.

Brent Mitsuuchi, O.D.

Completed his Bachelor's Degree in Biology from UCLA in 1990.
Completed his Doctorate in Optometry from Southern California College of Optometry in 1994. 

Treatment and Management of Ocular Disease.
Treatment and Management of Glaucoma. 

He is a Ventura County native is married and has a daughter.
He enjoys playing basketball.

Marzena Gilbert, O.D.

Dr. Marzena Gilbert graduated from the University of California, Santa Barbara with a bachelor's of science degree in Pharmacology. Dr. Gilbert earned her Doctor of Optometry degree from the Southern California College of Optometry in Fullerton, California. She completed intensive clinical rotations in ocular disease, primary eye care, geriatric eye care, and specialty contact lens care at the Veteran's affairs Hospital in Tuscan, Sharp Rees Medical Center in San Diego, and the Naval Medical Clinic at Pearl Harbor, Hawaii. After Graduating from optometry school, Dr. Gilbert was then chosen as a resident optometry doctor at the Veteran's affairs Clinic Sepulveda.
As a residency trained optometrist, Dr. Gilbert has extensive experience managing and treating ocular disease and glaucoma. She is certified in the treatment and management of ocular disease and glaucoma, using the latest technology and instrumentation in office.

Dr. Gilbert is proficient in fitting specialty and scleral contact lenses for conditions such as keratoconus and irregular corneas. She also enjoys working with the pediatric population to ensure proper visual development, starting with infant eye exams and continuing yearly throughout the school ages.

Dr. Marzena Gilbert has been a proud member of Ventura Optometric Vision Care team since 2012 and believes in providing compassionate, high quality vision care.
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She enjoys being active outdoors, which led her to complete 2 Ironman Triathlons. Most currently, she enjoys spending time with her husband and two young children.

Wendy Kumata, O.D.

Completed her Bachelor's Degree in in Science, Visual Science from UCLA in 1990.  Completed her Doctorate in Optometry from Southern California College of Optometry in 1994.

Treatment and Management of Ocular Disease.
Treatment and Management of Glaucoma.
Past recipient of Tri-County Optometric Society. 
Young O.D. of the Year Award.

Dr. Kumata is married and enjoys spending quality time with her daughter. 

Natalie Kassar-Ora, O.D.

Completed her Bachelor's Degree in Sociology at Pepperdine University in 2011.  Completed Doctorate in Optometry at Southern California College of Optometry in 2017.

Treatment and management of ocular disease.
Treatment and management of glaucoma.

Loves going to the beach, volleyball and spending time with family.

Nicole Vi Le, O.D., F.A.A.O.

Dr. Le obtained her bachelor’s degree in Psychobiology at the University of California, Los Angeles (UCLA). She attended the Southern California College of Optometry (SCCO) in Fullerton and graduated with her doctorate degree. In 2012, Dr. Le completed a residency in ocular disease at Seidenberg Protzko Eye Associates in Maryland. In the same year, she became a Fellow of the American Academy of Optometry. She is glaucoma certified. Her interests are pediatrics, fitting scleral contact lenses for conditions such as keratoconus and irregular corneas and low vision.
Dr. Le currently resides in Ventura County with her husband and three children. She and her family stay active in the community through a local non-profit organization, Ruben Castro Charities.

​Her other interests are: spending time with her family, watching basketball and tennis games, and exploring new restaurants. If you have any favorite places to eat, please let her know!

​          Introducing our newest member of the VOVC family:

Rebekah Klein, O.D.​


Dr. Klein graduated with a Bachelor of Science Degree in Biology from the University of California Riverside.  She earned her Doctorate of Optometry Degree from Western University of Health Sciences in Pomona.  Dr. Klein has practiced optometry in many different settings, which have included private practice, ophthalmology/optometry group practice, Indian Health Services, and the Department of Veterans Affairs.

Certified in Treatment and Management of Ocular Disease
Treatment and Management of Glaucoma.
Dr. Klein is especially interested in the areas of myopia management, dry eyes, and contact lenses.
In her free time, she enjoys spending time with family and friends over a tasty meal, listening to true crime podcasts, going to the beach, hiking, and finding local places to explore.

Mark P. Bozek, O.D.

Happy Retirement Dr. Bozek ! 
Our highly trained staff are always ready and available to help you with any questions
or concerns you may have.
We strive to provide efficient, fast, and reliable service to our patients.