what is the meaning of cataract and colour blindness?
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Explanation:
a large waterfall.
-blindness is the inability to distinguish the differences between certain colors. This condition results from an absence of color-sensitive pigment in the cone cells of the retina, the nerve layer at the back of the eye.
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Cataract is an eye infection which blurs the image.
Colour blindness is an eye disease in which one is not able to differentiate colours properly.
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