Human eye layer, known as the fibrous tunic, is composed of the cornea and sclera. The middle layer, known as the vascular tunic or uvea, consists of the choroid, ciliary body, pigmented epithelium and iris. The innermost is the retina, which gets its oxygenation from the blood vessels of the choroid (posteriorly) as well as the retinal vessels (anteriorly). The spaces of the eye are filled with the aqueous humour anteriorly, between the cornea and lens, and the vitreous body, a jelly-like substance, behind the lens, filling the entire posterior cavity. The aqueous humour is a clear watery fluid that is contained
Catholic theology of the body and the Israelites. By giving man a perishable body, man was saved from the deep fall of Lucifer into eternal damnation. Gregory does not describe the human body before the fall, but he states that the bodily existence of man was free of any illness, needs or problems. The human body was related to God and free of sin towards him. The fall consisted in false pride, a revolt against God. Regarding the relation between body and soul, Gregory states, the body is related to the soul, like the way in which the soul is related to God. To explain