Why are corneal transplants so successful?
A) Corneas of all individuals tend to display the same MHC antigens.
B) The corneas of pigs are so similar to those of humans, xenotransplantation is almost always successful.
C) Doctors have perfected the technique for transplanting corneas.
D) The tissue is not exposed to lymphocytes.
E) There are numerous donors of corneas, so the success rate of transplantation is high.

Question

Quizplus · Accepted Answer

The cornea is an avascular tissue, meaning it lacks blood vessels, which limits exposure to the immune system and reduces the likelihood of rejection by lymphocytes.

Why Are Corneal Transplants So Successful