Question

Cornea transplant in humans is almost never rejected. Because

• A. It is composed of enucleated cells.
• B. It is a non-living layer.
• C. Its cells are least penetrable by bacteria.
• D. It has no blood supply.

Answer 1

Answer: (D)

It has no blood supply.

The cornea is the clear outer lens on the front of the eye. A cornea transplant or keratoplasty replaces diseased or scarred corneal tissue with healthy tissue from an organ donor.
Here, the chances of rejection is lesser than that in case of other organs, as there is no blood supply, containing antibodies.