About Us

Our staff is trained to serve you. Each member of our staff is trained for the duties he or she performs. All staff members involved with patient care are Certified Ophthalmic Technicians, Certified Ophthalmic Assistants, or Certified Opticians.

The entire staff regularly attend continuing education meetings to increase their ability to serve you in our ever-changing and highly technical profession.


Glen D. Nydam, O.D.

Dr. Nydam was raised in Platte, South Dakota. He received his Bachelor of Science degree, with honors from Dordt College in Sioux Center, Iowa. He is a 1996 honors graduate of Southern California College of Optometry where he was awarded the Frank A. Brazelton Award for clinical excellence. Dr. Nydam has completed ocular disease, contact lens, and low vision internships at the Optometric Center of Los Angeles; Tripler Army Medical Center, Hawaii; the Santa Monica Center for the Partially Sighted; and Kaiser Permanente, Fontana, California.

Dr. Nydam attended optometry school through a scholarship with the U.S. Army. During his four years of military service, he served as Chief of Optometry Services in Shape, Belgium and Tuzla, Bosnia. He also served as staff optometrist at Ft. Leonard Wood Army Community Hospital in Missouri. In June of 2000, he joined the Mabee Eye Clinic.

Dr. Nydam is board certified in Optometry by the National Board of Examiners in Optometry and is an active member on the American Optometric Association, and the South Dakota Optometric Association. Dr. Nydam and his wife, Jill, have four children, Kendra, Braeden, Reegan and Addison. His interests include hunting, travel, music and his family.


Gregg A. Bleeker, O.D.

Dr. Bleeker was born in Brookings, South Dakota, while his father attended SDSU, and was raised in Pipestone, Minnesota. He graduated with honors from Dordt College in Sioux Center, Iowa. In 1979, Dr. Bleeker enrolled at Illinois College of Optometry in Chicago, Illinois and graduated as valedictorian of his 1983 optometry class. He was able to attend optometry school by accepting a United States Air Force Health Professional Scholarship. Upon completion of optometry school, Dr. Bleeker served as an optometrist and Captain with the USAF for a 3 year tour of active duty at Malmstrom Air Force Hospital near Great Falls, Montana. In October of 1986, he moved to Mitchell to join the Mabee Eye Clinic. Dr. Bleeker is a Board Certified Optometrist and is fully certified to prescribe eye medications. He is an active member of the SD Optometric Society and the American Optometric Association. He is married to Janet (Crockett) and has two children, Adam and Ellie. His interests are water skiing, boating, downhill skiing, running and music.


Nicholas J. Wenande, O.D., F.A.A.O.

Dr. Nicholas Wenande was raised in Mitchell, South Dakota. He holds a Bachelor of Science degree in Biology and Chemistry from Mount Marty College in Yankton, SD and a Doctorate of Optometry from the University of Missouri-St. Louis College of Optometry. Upon completion of his education, Dr. Wenande spent three years in the United States Army as assistant chief of optometric services at Reynolds Army Health Clinic, Fort Sill, OK.

Dr. Wenande is board certified in Optometry by the National Board of Examiners. He is an active member of the American Optometric Association, the South Dakota Optometric Association, and the Scleral Contact Lens Society. He holds a fellowship in the American Academy of Optometry, a distinction held by only fifteen optometrists in the state of South Dakota. Dr. Wenande is a strong believer in customer service and offering a positive patient experience. He believes superior diagnostic technologies and clinical excellence should be the expectation of all of his patients. Dr. Wenande is excited to be back in Mitchell serving his community and providing a personalized approach to meeting his patient’s needs. 

Nick and his wife Laura (Osterloo) have two children, Emery and Adler. Laura is a photographer and owns L.O. Imijri Photography & Design. In their free time, their family enjoys being active in their community, watching sports, and enjoying outdoor activities.