Ur Medstudy MCQ 53

In human corneal transplantation,the donor tissue is:
A.Synthetic polymer
B.Donated human cadaver eyes
C.Donated eyes from live human beings
D.Monkey eyes  The correct answer is : B.Donated human cadaver eyes

NOTE:

• In corneal transplantation or keratoplasty the diseased cornea is removed and replaced with healthy cornea,obtained from cadevers
• the cornea should be removed from cadeveric donors within 6 hours after death,sometimes upto 12 hours after death in countries with cold climates.
• The cornea is an immunologically privileged organ because of its non-vascular nature and hence corneal graft rejection is less common than that of other organs.