About JOHN-KENYON. The people of vision at John-Kenyon have provided quality eye care to Louisville and southern Indiana for more than 30 years. Our team includes corneal, retinal, cataract, and refractive specialists, making us the only medical and surgical eye care provider you'll ever need.Contact Us‧Louisville‧Asim R. Piracha, M.D‧Our Providers‧Cataract‧Locations.