retin/o (19/24)

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retin/o is a combining form that refers to “retina”.

An eye’s retina is a layered structure located at the back of the eye. The retina converts light passing through the eye into electrical signals. Millions of light-sensitive cells (rods and cones) and nerve cells are found within the retina. Through the optic nerve, your retina transmits this information to your brain, which is what allows you to see.