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The round opening in the iris that allows light rays to enter the eye is the
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The round opening in the iris that allows light rays to enter the eye is the

User Viral Parmar
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Dark, round, central opening in the iris that allows light rays to enter the internal eye. Constriction and dilation is under involuntary control through nerve impulses to the muscles of the iris from the oculomotor nerve.
User Yanik Ceulemans
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