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Cyanopsia often occurs for a few days, weeks, or months after removal of a cataract from the eye. Cyanopsia also sometimes occurs as a side effect of taking sildenafil, tadalafil, or vardenafil. Cyanopsia is a medical symptom and not a sign. It is a purely subjective state and can be caused by a physical or functional abnormality of the eye, a ...
Chromostereopsis is a visual illusion whereby the impression of depth is conveyed in two-dimensional color images, usually of red–blue or red–green colors, but can also be perceived with red–grey or blue–grey images. [1] [2] Such illusions have been reported for over a century and have generally been attributed to some form of chromatic ...
Impossible color. The human eye's red-to-green and blue-to-yellow values of each one-wavelength visible color [citation needed] Human color sensation is defined by the sensitivity curves (shown here normalized) of the three kinds of cone cells: respectively the short-, medium- and long-wavelength types. Impossible colors are colors that do not ...
She concludes that "For Colored Girls feels like the cinematic equivalent to putting a garish reproduction of the Sistine Chapel on the ceiling of your McMansion and calling it art." In contrast, a review by Shadow and Act was favorable, calling For Colored Girls "the best thing Perry has done to date." Perry is complimented on his ...
Archaeologists and volunteers excavating an ancient Roman site in the United Kingdom uncovered a “mysterious” purple lump. It turned out to be an “incredibly rare” substance once “worth ...
“The Color Purple” musical film debuts in theaters on Christmas Day. Warner Bros., like CNN, is part of Warner Bros. Discovery. For more CNN news and newsletters create an account at CNN.com
pɪˈtiːkɪə. Specialty. Rheumatology. A petechia ( / pɪˈtiːkiə /; [1] pl.: petechiae) is a small red or purple spot (≤4 mm in diameter) that can appear on the skin, conjunctiva, retina, and mucous membranes which is caused by haemorrhage of capillaries. [2] [3] The word is derived from Italian petecchia, 'freckle,' of obscure origin. [1]
Ian Gillan. Ritchie Blackmore. Roger Glover. Jon Lord. Ian Paice. Producer (s) Deep Purple. " Pictures of Home " is a song by the British hard rock group Deep Purple, from their 1972 album Machine Head. It begins with a drum introduction by Ian Paice and features a fast-paced, driving guitar riff and bass line with several instrumental solos.