Composed of skin, conjunctiva and muscle. Function To distribute tears over the surface of the eye To talk about this To limit the amount of light entering it To protect it from foreign bodies. Protects the eye from foreign bodies and drying out.
Tears drain via the lacrimal sac into the nasal cavity.
Made up of three separate coats or tunics. The outer fibrous layer is made up of the sclera posteriorly and the cornea anteriorly. The middle coat or choroid is made up of the choroid posteriorly and the cilliary body and iris anteriorly. The inner coat is the retina. The sclera appears as the white of the eye and forms the structural support for the eye.