Sclera Sclera The sclera, also known as the white of the eye, is the opaque, fibrous, protective, outer layer of the human eye containing mainly collagen and some elastic fiber. In humans, the whole sclera is white, contrasting with the coloured iris, but in other mammals the visible part of the sclera matches the colour of the iris, so the white part does not normally show. In the development of the embryo, the sclera is derived from the neural crest. In children, it is thinner and shows some of the underlying pigment, appearing slightly blue. In the elderly, fatty deposits on
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