The term 'eye layer' refers to two distinct parts of the eye: the uvea and the RETINA. The uvea, also known as the uveal layer or uveal tract, is a layer of tissue that lies between the sclera and the RETINA. It consists of the iris, ciliary body, and choroid. The RETINA is a thin layer of light-sensitive tissue located at the back of the eye. It is responsible for converting light into electrical signals that are sent to the brain, allowing us to see.