A characteristic of human cornea is

Options

A. it is secreted by conjunctiva and glandular tissue
B. it is lacrimal gland which secretes tears
C. blood circulation is absent in cornea
D. in old age it become hard and white layer deposits on it which causes the cataract

Answer

C

Explanation

Human eye is about 1 inch in diameter and is convered and protected by the sclera, which is made up of tough connective tissue. The fornt of eye is transparent thus allows the light to enter the eye. This portion of the eye's outer layer is called cornea. It lacks a blood supply. It derives nutrients via aqueous humour from cell body. Cornea not only allows light to enter the eye but also bend it as well. This makes it a characteristic feature of human eye, i.e., cornea.