Final answer:
The three layers of the eye are the fibrous tunic, vascular tunic, and neural tunic. The fibrous tunic is the outermost layer, the vascular tunic is the middle layer, and the neural tunic or retina is the innermost layer.
Step-by-step explanation:
The three layers of the eye are the fibrous tunic, vascular tunic, and neural tunic. The fibrous tunic is the outermost layer, which includes the white sclera and clear cornea. The vascular tunic is the middle layer, composed of the choroid, ciliary body, and iris. The innermost layer is the neural tunic or retina, which contains the photoreceptor cells responsible for vision.