Question

Which part of the eye is donated after death?

Answer 1

Hint: When someone receives an “eye transplant”, they are being given a donor the outermost part/layer of the eye. The corneal transplant requires a functioning retina and optic nerve to restore vision. This is the part of the eye which does not contain blood vessels. A chamber containing a watery fluid called ‘aqueous humor’ is also present.

Complete answer:
Cornea is donated after death. In case of an eye transplant after death, an eye bank receives a call from a hospital, an organ procurement organization or another third party that an individual has died and has met preliminary criteria for donation. The eye bank has a very short time within which to contact the next of kin, obtain consent and recover the tissue.
The cornea is the eye's clear, protective outer layer. Along with the sclera (the white outermost layer of eye), it serves as a barrier against dirt, germs, and other things that can cause damage. Even, cornea can also filter out some of the sun's ultraviolet light.
Corneal and ocular donations are only viable for transplant for up to 14 days. However, most donations are used within one to four days due to the great need for donations.
When the cornea becomes cloudy from disease, injury, infection or any other cause, vision will be drastically reduced. More than 90% of the corneal transplantation is carried out successfully and helps restore vision in people with corneal blindness.

Note :
Unlike organ donation, corneas can be recovered several hours after death & can be performed within 3-5 days after donation. The white part of the eye is called the sclera & that can be donated as well. This is because these parts don’t have vascularization, i.e, no blood supply. Someone can also wish to donate his/her whole eye after death. At that time, donation needs to occur within 4 hours of death.