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Our Doctors


Dr. Jennifer Simonson

Clinic Director

Jennifer S. Simonson, OD, FCOVD is a graduate of the Ohio State University College of Optometry and a Fellow of the College of Optometrists in Vision Development (COVD). She is a member of the Colorado and American Optometric Associations and the Optometric Extension Program Foundation. Dr. Simonson was the recipient of the 2007 Colorado Young Optometrist of the Year.

She is active on the International Examination and Certification Board (IECB), the Colorado Vision Training Conference planning committee, and enjoys public speaking. Her primary interests in practice include pediatric vision care, vision therapy, sports therapy, and vision rehabilitation. Dr. Simonson is a co-founder of Gerull Labs (g-labs) that developed the Opto App and Stereoscope for iPad in 2014. Dr. Simonson is the author of several children’s books about vision therapy: “My Perfect Vision” (June 2016), “My Double Vision” (December 2016), "My Jumbled Vision" (July 2017) and "My Mismatched Vision" (August 2018).



Dr. Roger Dowis

Roger Dowis, OD, FCOVD is a graduate of the Pacific University College of Optometry. He has provided vision therapy services in Boulder, Colorado since 1976. In 2008, Dr. Dowis sold the Dowis Vision Therapy Center practice (now Boulder Valley Vision Therapy Center) to Dr. Simonson to enter semi-retirement. Dr. Dowis earned Fellowship in the College of Optometrists in Vision Development (COVD) and is a founding member of Colorado Vision Consultants, authors of The Esotropia Manual. In 2020, Dr. Dowis fully retired from patient care. His legacy of helping develop children's vision and enhance adult visual performance will continue through the Dowis Vision Therapy Scholarship.