Dr. Citek is a Professor of Optometry at Pacific University College of Optometry in Forest Grove, Oregon. He has taught courses in Ophthalmic Optics, Physiological Optics, Low Vision, Visual Perception, and Environmental Vision, and has seen patients and supervised student interns in the Primary Care and Low Vision Clinics at Pacific EyeClinic Forest Grove.

Dr. Citek received his degrees of Doctor of Optometry and Doctor of Philosophy in Vision Science from the State University of New York College of Optometry in 1993 and 1995, respectively. He is a Fellow of the American Academy of Optometry and a member of the American Optometric Association, the Oregon Optometric Physicians Association, the Optical Society of America, and the Association for Research in Vision and Ophthalmology. In 2006, Dr. Citek was named a DRE Ambassador by the DRE Section of the International Association of Chiefs of Police. Since 2012, he has served on the Technical Advisory Panel of the IACP.

Along with colleagues from Pacific University and the Oregon State Police, Dr. Citek has co-authored peer-reviewed papers reviewing the DRE program; confirming that DRE officers can use limited information to form correct opinions regarding drug intoxication; establishing that HGN can be assessed on standing, seated, and supine suspects; and demonstrating that sleep deprivation does not cause impairment clues that would be mistaken for intoxication.

Dr. Citek has been involved in teaching eye signs at the DRE Schools in Oregon, Washington, and Montana, and observing alcohol workshops, certification sessions, and several ride-alongs around the country. He has participated in over 200 presentations to police officers, prosecutors, and judges on HGN and eye movements at regional, national, and international meetings, including several of the IACP Annual DRE Conferences. In addition, he has testified as an expert witness for the prosecution on the admissibility of HGN and DRE evidence at numerous hearings and trials around the U.S.