Dr. Kellye Knueppel knew that volunteering at the Special Olympics World Summer Games would be a thrill. She also knew it would put her optometric abilities to the test.Brookfield, WI (PRWEB) July 25, 2011 At the recent Special Olympics World Summer Games in Athens, Greece, Wisconsin optometrist Dr. Kellye Knueppel found herself facing a professional challenge of Olympic proportions.Dr. …