What is the function of the choroid?

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(B) The choroid is the middle layer of the eye wall,located between the sclera and the retina.It is rich in blood vessels and contains dark-colored pi

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It contains black pigments which prevent internal reflections within the eye.

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(B) The choroid is the middle layer of the eye wall,located between the sclera and the retina.It is rich in blood vessels and contains dark-colored pigments (melanin).The primary function of these pigments is to absorb excess light and prevent internal reflections within the eyeball,which ensures that the image formed on the retina is sharp and clear.

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