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Osage Beach Location


Camdenton Location

(573) 346-7899

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Contact us using the form or call us at Camdenton (573) 346-7899 or Osage Beach (573) 348-2729.

Meet the Optometrists

Our Optometrists

Dr. Brett Koons, originally from Garden City, Kansas, pursued his undergraduate degree from the University of Kansas. He earned his Doctorate of Optometry from the University of Missouri St. Louis College of Optometry. During his schooling in St. Louis, Dr. Koons spent four months at the Kansas City V.A. hospital under Dr. Timothy Harkins, an internship specializing in disease. Other internships include experience in private optometric practices specializing in contact lenses and pediatric care. Dr. Koons is working Monday through Friday at Lens Mart Optical's offices in both Camdenton and Osage Beach. Call for an appointment for your next eye examination.

Dr. Erin Gagnon, grew up in Marshall, MO and received her Bachelor of Arts degree in Biology from William Jewell College.  She earned her Doctorate of Optometry from the University of Missouri St. Louis College of Optometry where her clinical training included patient care at the Harry S. Truman Veterans Hospital, Chickasaw Nation Indian Health Services in Oklahoma, and the St. Louis Children’s Hospital.  Upon graduation, Dr. Gagnon practiced in O’Fallon, MO for 5 years before joining Eyes on Missouri in Osage Beach in 2013.  She is a member of the American Optometric Association, Missouri Optometric Association, and Women of Vision.  Her clinical skills emphasize family eye care, contact lens fit techniques, and the diagnosis and treatment of ocular disease.  Dr. Gagnon lives in Osage Beach with her husband and 2 daughters. She excited to continue serving the Lake Area community at Lens Mart Optical.