Sclera nitrogenous sugar, hexosamine) to embed the fibrils. The cornea, unlike the sclera, has five layers. The middle, thickest layer is also called the stroma. The sclera, like the cornea, contains a basal endothelium, above which there is the lamina fusca, containing a high count of pigment cells. Sometimes, very small gray-blue spots can appear on the sclera, a harmless condition called scleral melanocytosis. Human eyes are somewhat distinctive in the animal kingdom in that the sclera is very plainly visible whenever the eye is open. This is not just due to the white colour of the human sclera, which many
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