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Name three structures that help focus the light rays entering the eye?
Wiki User
∙ 12y ago
The 3 major parts of the eye are the Iris, the Lens, and the Retina.
The iris regulates the amount of light let into the eye. The lens focuses the incoming light onto the retina. The retina at the back of the eye senses the presence, intensity, and frequencies (colors) of the light, and sends those senses via two optical nerves to the lower rear of the brain for interpretation.
Wiki User
∙ 11y ago
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