Meet Our Team

Dr. William Najem

William R. Najem, O.D., is a graduate of The Illinois College of Optometry, and received his undergraduate degree in biology from Kent State University. While attending the Illinois College of Optometry, Dr. Najem completed an internship at the Naval Hospital in Portsmouth, New Hampshire. He has collaborated with the Vistakon Corporation on the development of the Acuvue Advance Astigmatism and Acuvue Oasis contact lenses. These new lenses are designed to enhance vision and comfort for bifocal contact lens wearers and those suffering from dry eye. On his days off, Dr. Najem can be found playing guitar, enjoying a football game, hitting a golf ball around, or exploring the great outdoors with his wife, Kate, and their children, Erin and Henry.

Dr. Juliet Lewis

Dr. Juliet Lewis Tritsis graduated from Illinois College of Optometry where she received her Doctor of Optometry and Bachelor of Science in Visual Science. Dr. Lewis Tritsis earned her undergraduate degree at Ohio University in Psychology with research in Psychophysical response to Auditoria Stimuli. At Illinois College of Optometry, she was a member of the Beta Sigma Kappa Honor Society, a member of the Illinois Contact Lens Society, served as a teaching assistant for Color Vision/Neurobiology and tutored students in Strabismus and Amblyopia. Dr. Lewis Tritsis completed an internship at the Huntington Veterans Affairs Medical Center in West Virginia. She is board certified in diagnosis and treatment of ocular disease and holds Optometry licenses in Illinois and Florida.
Dr. Lewis Tritsis grew up in Ohio along with her brother Dr. Najem. She and her husband, Christopher, live in Wilmette and have three children, Courtney, Annabel and Michael. In her spare time, she enjoys traveling and being with friends and family.

Dr. Robert Barabas

Dr. Barabas is Affinity Optical’s expert on difficult contact lens fits. A very distinguished optometrist that has ushered in many of the current contact lens designs that have given quality sight to many patients that have failed elsewhere. He has countless honors such as Diplomat of the American Academy of Optometry. Dr. Barabas graduated from Illinois College of Optometry in 1965 and worked with the pioneers of the soft contact lens. His expertise in fitting contact lenses is unrivaled.

Kosta G. - Daily Operational Manager- Head of Sales

Kosta is a very skilled optician who has been a part of the practice for the last 13 years. He was born and raised in Skokie, Illinois and went to the University of Illinois Champaign. He is fluent in Greek and speaks Spanish as well. He enjoys working in the lab and taking part in the manufacturing of glasses. He is a specialist when it comes to picking out frames for patients and finding the right fit and shape for their faces. When he is not at the office, Kosta enjoys playing golf and watching sports. Kosta is looking forward to helping you find your new glasses!