The retina is at the back of your eye and it has light-sensitive cells called rods and cones. When you look at something, light hits the retina, the rods and cones send electrical signals to the brain along the optic nerve. The brain uses these signals to interpret what you are seeing. See what I mean?
Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.
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