Scintillating scotoma is the most common visual aura preceding migraine and was first described by 19th-century physician Hubert Airy (1838â1903). It is often confused with ocular migraine, which originates in the eyeball or socket.any variations occur, but scintillating scotoma usually begins as a spot of flickering light near or in the center of the visual field, which prevents vision within the scotoma area.
Spider monkeys live in a biome with many trees. They move around by swinging from tree to tree. Spider monkeys do not build a nest or take shelter in a cave. Instead, they sle â¦ ep high up in a tree on a wide branch. Spider monkeys mostly eat fruits and nuts.
Cancel. Spiders live all over the world, including trees, dry areas, wet areas, under ground and in the oceans. Discover the different varieties of spiders on the earth with information from a science teacher in this free video on spider habitats.ancel. Spiders live all over the world, including trees, dry areas, wet areas, under ground and in the oceans. Discover the different varieties of spiders on the earth with information from a science teacher in this free video on spider habitats.