• 2 W Dry Creek Cir #230, Littleton, CO, 80120

About Us

Casey Optical Colorado is dedicated to providing personalized, affordable, quality eye care and eyewear.

Optometrist Littleton Colorado

We offer the highest levels of lens technologies including Zeiss and a variety of different frame manufacturers including - Tom Ford, Derek Lam, Salvatore Ferragamo, OVVO, Modo, Nike, Gwen Stefani, ECO and many more!
The practice is committed to taking the time to educate and serve our patients. We have the most advanced diagnostic instruments and exam lane technologies and pride ourselves on giving you the “Experience” you deserve....but don’t always find today.

Optometrist Littleton Colorado

Dr. Mark Strum

Dr. Strum has practiced optometry in Colorado for over 35 years. He graduated from the New England College of Optometry in 1976. Shortly thereafter, he worked with a large practice in Greeley. Two years later, he opened his own practice in the Littleton area and it has been growing ever since.

Dr. Strum is fully certified in diagnostic and therapeutic treatment of eye disease. He is also certified in the co-management of Laser Vision correction and works with several of the premier LASIK surgeons in Colorado.

Dr. Strum is known for his expertise, accuracy, and top-notch eye care among doctors and patients statewide. He was voted the “Best of the Best Eye Care Providers” by the Littleton Independent Readers.

Dr. Strum enjoys playing golf, playing music, reading, and spending time with his wife and two sons in his free time.

Optometrist Littleton Colorado

Elizabeth Thomas, O.D.

Elizabeth Thomas grew up in Houston, Texas and received her undergraduate B.S. degree in Human Nutrition and Foods from the University of Houston. After graduation, she was chosen by the United States Army to complete a dietetic internship at Walter Reed Army Medical Center as an officer. Her first duty assignment was at Fitzsimmons Army Medical Center (FAMC) as the Chief of Clinical Dietetics. It was there at FAMC where she became fascinated with the effects of nutrition on the eyes. Soon after she began to volunteer after hours in the FAMC Optometry Clinic, she was accepted to Pacific University College of Optometry where she graduated with distinction and was a member of Beta Sigma Kappa – International Optometric Honor Society.

She completed her training at the Air Force Academy in Colorado Springs, a laser vision correction facility in Denver, and a vision therapy practice in Wheatridge, Colorado. She is certified by the National Board of Optometric Examiners of Optometry and has been practicing the full scope of optometry for patients of all ages. She is trained in the treatment and management of ocular diseases, pre and post operative care of patients undergoing LASIK or cataract surgery, and holds a strong interest in contact lens fittings. For 14 years, she has worked in primary care clinics for underserved children and adults all around the Denver area and also worked in a LASIK surgery center. She is a member of the Colorado Optometric Association and American Optometric Association.

In her spare time, she enjoys spending time with her three teenage children, and husband, and loves to dance tap, jazz, and modern/contemporary styles of dance. She also enjoys skiing and snowboarding.


Valerie, our Master Optician, has 33 years of optical experience and custom fits you with the right frame shape, color and style for you face and budget. Adjusting is her specialty!


Melissa, our Front Office Manager, has been with the practice for 3 years and is always here to schedule your appointment, help you to understand your insurance and be of service.


Haley, our Optometric Technician, has 3 years experience and is knowledgeable, personable, warm & friendly. "


Monday 9 am - 1 pm
Tuesday 9 am - 6 pm
Wednesday 9 am - 6 pm
Thursday 10 am - 7 pm
Friday 7 am - 4 pm
1 Saturday per month by appoinment only