KarnsVision.com - Give us a call today at (865)-247-7715 . Dr. Michelle Presson, Dr. Shane Presson and the staff at Karns Vision Center, are passionate about providing their patients with the best quality care possible. The team specializes in Sports Vision, Treating Red Eyes, and Medical Eye and Vision Care. Our office has Lasik, Hard-to-Fit Contacts, and Computer Vision Treatment in order to diagnose and treat specific patients needs. The office serves the surrounding towns of Cedar Bluff, Karns, and Powell.