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 Sibyl his "Exegesis", and later the novels "VALIS", the posthumously published precursor to VALIS, "Radio Free Albemuth", and "The Divine Invasion". Eventually rejected by the venue for which it was written, the major points of Dick's 1975 worldview are set forth, in a style reminiscent of his earlier work, and very similar to his treatment of this material in his later books. The Eye of the Sibyl "The Eye of the Sibyl" is a science fiction short story by American writer Philip K. Dick. It was written sometime around 1975, but not published until 1987 when it was included in volume