Sclera However, acid burns, even severe ones, seldom result in loss of the eye. Alkali burns, on the other hand, such as those resulting from exposure to ammonium hydroxide or ammonium chloride or other chemicals with a pH above 11.5, will cause cellular tissue in the sclera to saponify and should be considered medical emergencies requiring immediate treatment. Yellowing of the sclera is a visual symptom of jaundice. In very rare but severe cases of kidney failure and liver failure, the sclera may turn black. Sclera The sclera, also known as the white of the eye, is the opaque, fibrous, protective,
The Tribal Eye The Tribal Eye The Tribal Eye is a seven-part BBC documentary series on the subject of tribal art, written and presented by David Attenborough. It was first transmitted in 1975. This episode centers on the life and customs of the Dogon people in Mali, concentrating primarily on their masks and mask rituals. After a brief introduction to the Dogon culture, the link between African and European art is elaborated upon, using works by Picasso and Braque as examples. Dogon blacksmiths are shown working on a sculpture and a monkey mask for an old woman's funeral; the funeral rites, which include