S2, E5: Tony strains his eyes while studying for a sub orbital flight. Dr. Bellows orders him to take an eye test the following morning. Tony emphatically turns down Roger's suggestion that he get Jeannie's help in passing the examination. Jeannie gets the truth out of Roger and pops into Tony's pocket. Her efforts to improve Tony's vision are too successful. Tony not only sees Dr. Bellows and his secretary, Miss Gordon, in their undergarments, but actually sees through the wall. When he reads the chart, he reads a sign in the adjoining room. Bellows breaks in on General Peterson's conference and announces that Tony has X ray vision. Meanwhile, Tony pleads with Jeannie to. restore his normal eyesight. Jeannie replies it will be difficult, but she will try. By the time Peterson and his staff arrive to observe Tony's remarkable vision, he is barely able to see. Jeannie makes another attempt and Tony sees animated skeletons of the people around him. Later, Jeannie tells Tony she had no idea that vision was so important to an astronaut. Tony tells her perfect hearing is also vital. Deciding to improve Tony's hearing, Jeannie blinks and Tony hears nothing at all.