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Welcome to our Gilbert office, serving the East Valley region

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Home » Meet Dr. Johnson & Staff

Meet Dr. Johnson & Staff

Eye care professionals specialize in understanding how the human eye really works, as well as diseases and conditions that affect your vision - many of which do not have obvious symptoms. Eye doctors know how age and risk factors affect vision over time for young and old, and they understand the benefits and features of corrective lenses including eyeglasses and contacts.

Dr. Simon takes the time to explain the results of your eye exam, describe your options and listen to your eye care needs. Because maintaining good eye health is an ongoing partnership, we encourage you to ask questions and share your health information, which could be vital to monitoring, diagnosing and treating potential vision problems.

Meet our doctor:


Dr. Karen Johnson

Dr. Karen Johnson grew up in Green River, Wyoming. She attended Casper College and the University of Wyoming before moving to California for Optometry School. She is a 1998 graduate of the Southern California College of Optometry. After graduation, she completed a residency in hospital based optometry in Sells, Arizona at the USPHS IHS Hospital where she received extensive training in the area of diabetic eye disease. She has presented her research on the prevalence of diabetic eye disease at the American Academy of Optometry and has been published in optometry journals in the area of contact lenses.

Before opening Eye Concepts Vision Center, Dr. Johnson practiced for several years at a large ophthalmology group and then in a commercial location in Moline, Illinois and in Chandler, Arizona. She has been licensed to practice in Georgia, Iowa, Illinois and Arizona.

In her free time Dr. Johnson enjoys backpacking, hiking, traveling and being a dance mom to her daughters Libby and Avery.


Jared Branch, Licensed Optician

Jared Branch has been a dispensing optician for 20 years.  He is certified by the American Board of Opticians and the National Contact Lens Examiners.  He has been a licensed dispensing optician in the State of Arizona since 2008.


Lyle Southard, Licensed Optician

With 19 years of experience, Lyle brings a wealth of knowledge and expertise to the Eye Concepts team .  He is certified by the American Board of Opticians, National Contact Lens Examiners and is currently working as an Arizona Licensed Dispensing Optician.


Libby, Licensed Optician

Libby is an Arizona State Licensed Optician with 19 years in her field. She is also certified by the American Board of Opticians and National Contact Lens Examiners. Libby has extensive frame and lens fitting expertise and provides patients with exceptional service. In her spare time, she enjoys making a difference in her community by volunteering as a foster coordinator for a local animal rescue.


Christina, Dispensing Optician/Patient Coordinator

Christina brings her collective dispensing optical experience to Eye Concepts and provides patients with exceptional care and knowledge. Cristina is an avid reader and enjoys finding new recipes to try in her free time.