define Working of eye plxx answer my question
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The iris (the colored part of the eye) controls how much light the pupil lets in. Next, light passes through the lens (a clear inner part of the eye). The lens works together with the cornea to focus light correctly on the retina. ... These electrical signals travel from the retina through the optic nerve to the brain.
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The iris (the colored part of the eye) controls how much light the pupil lets in. Next, light passes through the lens (a clear inner part of the eye). The lens works together with the cornea to focus light correctly on the retina. ... These electrical signals travel from the retina through the optic nerve to the brain.
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