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 Human Factor (2002 The Outer Limits) The Human Factor (2002 The Outer Limits) "The Human Factor" is an episode of the television show "The Outer Limits". It first aired January 11, 2002, in the show's seventh season. This episode is a clip show. Clips appear from the following episodes: "Phobos Rising", "Hearts and Minds", "Manifest Destiny", "Something About Harry", "The Haven", "Final Exam", "Final Appeal", "The Vaccine", and "Replica". Jupiter's moon Ganymede is now the only hope for the human race in 2084 as overpopulation and constant warring has left much of Earth uninhabitable. Space Commander Ellis Ward (Robert Duncan McNeill) must convince android assistant Link