Science Source January 20, 2009 DVD
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Train crossing used to demonstrate normal color vision. This image is used in contrast to a similar image used to demonstrate color blindness. Color blindness is the lack of perceptual sensitivity to certain colors. There are three types of color receptors in our eyes, red, green and blue. Color blindness is a result of a lack of one or more of the types of color receptors. Most color perception defects are for red or green or both. About 10% of males have a color perception defect, but it is rare in females.
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Science Source January 20, 2009 DVD
2011-03-21
EAST NEWS
Science Source
Ralph C. Eagle Jr.
3a1380
1,11MB
25cm x 16cm by 300dpi
10, A, ABOUT, AND, ARE, BLEKIT, BLIND, BLINDNESS, BLUE, BOTH, BUT, CERTAIN, CITEAUX, COLOR, COLORS, CONTRAST, CROSSING, CZERWIEN, CZERWONA, CZERWONE, CZERWONY, DEFECT, DEFECTS, DEMONSTRATE, DEMONSTROWAC, EAGLE, EYES, EYESIGHT, FEMALES, FOR, GREEN, HAVE, IMAGE, IN, IS, IT, JEDEN, JR, KOBIETY, KOLOR, KOLOROWA, KOLOROWE, KOLOROWY, KOLORY, KONTRAST, LACK, LAZUR, MALES, MEZCZYZNI, MORE, MOST, NIEBIESKA, NIEBIESKI, NIEBIESKIE, NIEWIDOMY, NORMAL, NORMALNA, NORMALNE, NORMALNY, OBRAZ, OCZY, OF, OKAZYWAC, ONE, OR, OUR, PERCEPTION, PERCEPTUAL, POCIAG, POCIAGI, PRZECHODZIC, RALPH, RARE, RECEPTOR, RECEPTORS, RED, RED-GREEN, RESULT, RZADKA, RZADKI, RZADKIE, RZADKO, SAMCY, SENSITIVITY, SIMILAR, SKRZYZOWANIE, SLEPOTA, SLEPY, THE, THERE, THIS, THREE, TO, TRAIN, TRAINS, TRZY, TYPES, USED, UZYTA, UZYTE, UZYTY, UZYWANA, UZYWANE, UZYWANY, VISION, W, WIDZENIE, WIZERUNEK, WIZJA, ZDJECIE, ZENSKA, ZIELEN, ZIELONA, ZIELONE, ZIELONY,