Light
The structure in the eye refers to the different parts that work together to allow us to see. It includes the cornea, iris, lens, retina, and optic nerve.
Cornea: The transparent outer layer of the eye that helps focus incoming light.
A flexible part of the eye located behind the iris that adjusts its shape to focus on objects at different distances.
The innermost layer of tissue at the back of the eye where photoreceptor cells are located.