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A gray iris may indicate the presence of a uveitis, and an increased risk of uveal melanoma has been found in those with blue, green or gray eyes. [ 78 ] [ 79 ] However, a study in 2000 suggests that people with dark brown eyes are at increased risk of developing cataracts and therefore should protect their eyes from direct exposure to sunlight.
Mongolian spot is a congenital developmental condition—that is, one existing from birth—exclusively involving the skin.The blue colour is caused by melanocytes, melanin-containing cells, that are usually located in the surface of the skin (the epidermis), but are in the deeper region (the dermis) in the location of the spot. [6]
"His right eye was light blue, while the left was black, nevertheless his eyes were most attractive", is the description of the historian John Malalas. [ 33 ] [ 34 ] [ 35 ] A more recent example is the German poet, playwright, novelist, scientist, statesman, theatre director, and critic, Johann Wolfgang Goethe .
By Susana Victoria Perez, Buzz60 If you think you have blue eyes, think again, they are actually tricking you! All eyes are really brown. According to CNN, Dr. Gary Heiting, a licensed optometrist ...
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Another study – recording the fixation time of infants to blue, green, yellow, red, and gray at two difference luminance levels – found that infants and adults differed in their color preference. Newborns and one-month-old infants did not show any preference among the colored stimuli, while three-month-old infants preferred the longer ...
Domesticated cats with blue eyes and white coats are often completely deaf. [53] Deafness is far more common in white cats than in those with other coat colors. According to the ASPCA Complete Guide to Cats , "17 to 20 percent of white cats with non-blue eyes are deaf; 40 percent of "odd-eyed" white cats with one blue eye are deaf; and 65 to 85 ...
The green color is caused by ... in the United States to be 33.8% for those born from 1936 ... blue eyes, gray eyes have a dark epithelium at the back of the iris and ...