Eagle eye to the tear duct”. Eagle tears moisten the eyes and contain the chemical lysozyme which protects against salt water and also destroys bacteria, thus preventing eye infections. The nictitating membrane acts a sweeping wiper across the eye. The eagle iris is a pale yellow color, much lighter than human eyes. Both eagles and humans have a white area called the sclera, but in the case of eagles, it is hidden below the eyelid. Eyelid openings are oval-shaped in humans, while they are round in the case of birds' eyes. Most eagles have excellent vision. Generally, eagles do not suffer from
The Eye of the Beholder covered by bandages, dub the single line spoken by Tyler when she is revealed, portrayed by the actress Donna Douglas. However, Douglas had been listening to Stuart's voice as she recorded her part, and was able to imitate her so successfully that she was allowed to speak the line on camera herself. The original title for this episode was "Eye of the Beholder." Stuart Reynolds, a television producer, threatened to sue Serling for the use of the name because at the time he was selling an educational film of the same name to public schools. Reruns following the initial broadcast