About Our Practice

Fontana Optometric Group and Optometric Group of Upland Staff

Our Doctors

Dr. Douglas Leo

Dr. Leo is a graduate of the University of California, Berkeley and has been in private practice for over 20 years. Dr. Leo is a member of the American Optometric Association and is also proud to have served as a president of the Inland Empire Optometric Society. He is certified to prescribe eye medications and treat glaucoma. When away from the office, Dr. Leo enjoys running, hiking and traveling with his wife.

Dr. Richard Gray

Dr. Gray is a graduate of Southern California College of Optometry. He has eight years of clinical experience and is certified to prescribe medications and treat glaucoma. Along with being a member of the American Optometric Association and has served as a president in the local chapter of the Inland Empire Optometric Society. When not at the office, Dr. Gray enjoys relaxing and going to the movies with his wife and four children.

Dr. Jason Flores

Dr. Flores is a graduate of Indiana University School of Optometry. He has 15 years of clinical experience. He is a member of the American Optometric Association and has had the honor of serving as a president of the Inland Empire Optometric Society. His clinical interest include treatment of dry eye syndrome as well as the use of nutrition to enhance patient care. Outside of the office, Dr. Flores is an avid cyclist and enjoys family trips to Disneyland with his wife and son.

Dr. JunYao Xu

Dr. Xu is a graduate of the Western University of Health Sciences – College of Optometry. She is a 2021 graduate, did her clinical rotation with us at our Fontana location, and decided to come back to join our practice. She sees patients at both the Upland and Fontana locations and her clinical interests include myopia management and the treatment of dry eye syndrome. When not at the office she enjoys watching movies and a good board game.

Dr. Susan Sawyer

Dr. Sawyer is a graduate of the Southern California College of Optometry. She has over 20 years of clinical experience in both commercial and private practice settings as well as owning her own private practice for over 20 years. Patients from near and far come to continue their care with Dr. Sawyer as she continues to provide the highest level of care from her.

Dr. Sandy Ng

Dr. Ng is a graduate of the Southern California College of Optometry. She has over 20 years of clinical experience in southern California. Her clinical interests include the treatment of dry eye syndrome as well as myopia management. When not at the office, Dr. Ng enjoys cooking, baking, and spending time with her husband and two daughters.