Welcome to Grafton Eye Center. We are an independent, private eye care practices located inside the Grafton Costco. Drs. Kristopher Knous, Melissa Knous and Michelle Lewis are our board certified medical optometrists. They specialize in ocular disease and complex contact lens fittings. With over 50 years combined experience in treating patients in the Milwaukee area, you can rest assured you will receive the best comprehensive eye care at our office.