Dr. Crosier graduated from the University of Northern Colorado in 1991 with a Bachelor of Arts degree in Kinesiology. In 2000, he earned his Doctor of Optometry degree from the Illinois College of Optometry in Chicago. As part of the clinical curriculum, Dr. Crosier successfully completed rotations in primary eye care, contact lenses, ocular disease, low vision, and pediatrics/vision therapy.
Today, Dr. Crosier's areas of emphasis include primary eye care, ocular disease, contact lenses, and ocular surgical co-management.
Dr. Crosier has been a member of the American Optometric Society (AOA), Colorado Optometric Association (COA), and is currently a member of the Colorado Optometric Glaucoma Society (COGS).