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why does our eye ball appears black in colour !!!!!
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ʀᴇϙᴜɪʀᴇᴅ ᴀɴsᴡᴇʀ ‼️
It appears black because light rays entering the pupil are either absorbed by the tissues inside the eye directly, or absorbed after diffuse reflections within the eye that mostly miss exiting the narrow pupil.
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The function of the iris is to limit the amount of light that passes through the lens to the retina. To make the iris opaque, it is coated with the pigment melanin, in varying degrees for each of us. Melanin makes the eyes dark brown and 10,000 years ago, everyone's eyes were this colour.
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