Question

A characteristic of human cornea is

• A. Absence of blood circulation
• B. Causes cataract in old age
• C. Has lacrimal gland for secretion of tears
• D. Secreted by conjuctiva and glandular layer

Answer 1

The correct option is A Absence of blood circulation

Cornea is the anterior portion of sclera which is outer layer of eye. It is transparent and the only part of eye that is devoid of blood supply. It absorbs oxygen from the air. For this reason, transplant of cornea is successful in most cases and the chances of rejection by body are very rare. Transplant of cornea is known as keratoplasty.

So, the correct answer is 'Absence of blood circulation'.