E
ENDOTHELIUM
The innermost layer of the cornea. It is very thin and lies adjacent to the aqueous humour. |
EPITHELIUM
Tissue consisting of one or more layers of cells that line the mucous membranes and specifically the outer surface of the cornea (natural regeneration). |
EYE
Peripheral organ of the visual system responsible for the transduction of optical messages into nervous messages. There are three types of eyes: the type found on vertebrates, with its wide visual range; the compound eye of arthropods, which has a set of elementary receptors with a narrow field; and the eye found on mollusks, which resembles the eyes of vertebrates morphologically but has a retina like that of arthropods. The human eye is spherical in shape and about 24 mm in diameter; it includes another sphere towards the front of the eye, with a radius of 8 mm, known as the cornea. The eye encompasses the sclera, cornea, iris, ciliary body, choroid and retina. The eye’s interior includes the aqueous humour located between the cornea and crystalline lens, the latter held in place by the zonule of Zinn, and the vitreous humour located between the crystalline lens and the retina. The eye’s movements are controlled by six extrinsic muscles. |
|
|