Search results
Results from the WOW.Com Content Network
Although the deep blue eyes of some people such as Elizabeth Taylor can appear purple or violet at certain times, "true" violet-colored eyes occur only due to albinism. [74] [75] [76] Eyes that appear red or violet under certain conditions due to albinism are less than 1 percent of the world's population.
Heterochromia is a variation in coloration most often used to describe color differences of the iris, but can also be applied to color variation of hair or skin. Heterochromia is determined by the production, delivery, and concentration of melanin (a pigment ).
Impossible colors are colors that do not appear in ordinary visual functioning. Different color theories suggest different hypothetical colors that humans are incapable of perceiving for one reason or another, and fictional colors are routinely created in popular culture.
Much of the green and blue is scattered away, and more red light comes to the eye, creating the colors of the sunrise and sunset and making the mountains look purple. The phenomenon is referenced in the song " America the Beautiful ", where the lyrics refer to "purple mountains' majesty" among other features of the United States landscape.
An eye is a sensory organ that allows an organism to perceive visual information. It detects light and converts it into electro-chemical impulses in neurons (neurones). It is part of an organism's visual system.
Iris (anatomy) This article is about the part of the eye. For other uses, see Iris (disambiguation). The iris in humans is the colored (typically brown, blue, or green) area, with the pupil (the circular black spot) in its center, and surrounded by the white sclera.
Visual pathways in the human brain. The ventral stream (purple) is important in color recognition. The dorsal stream (green) is also shown. They originate from a common source in the visual cortex.
Color blindness or color vision deficiency ( CVD) is the decreased ability to see color or differences in color. [2] The severity of color blindness ranges from mostly unnoticeable to full absence of color perception. Color blindness is usually an inherited problem or variation in the functionality of one or more of the three classes of cone ...
A phenotypic trait is an obvious, observable, and measurable characteristic of an organism; it is the expression of genes in an observable way. An example of a phenotypic trait is a specific hair color or eye color.
In ancient Greek religion and mythology, Iris (/ ˈ aɪ r ɪ s /; EYE-riss; Greek: Ἶρις, translit. Îris, lit. "rainbow," Ancient Greek:) is a daughter of the gods Thaumas and Electra, the personification of the rainbow and messenger of the gods, a servant to the Olympians and especially Queen Hera.