Correct Answer:
B. (B) Cornea
Explanation:
The correct answer is (B) Cornea because it is the specific transparent outer tissue of the eye that is harvested and transplanted to restore vision.
Keratoplasty Procedure: When a person donates their eyes after death, a surgeon utilizes the clear, dome-shaped front surface known as the cornea to replace a recipient's damaged or diseased cornea in a surgical procedure called a corneal transplant.
Structural Limitations: Unlike the cornea, complex neural frameworks located in the back of the eye cannot be repaired or reattached to a new host through modern transplantation methods.
Incorrect Options:
(A) Retina is incorrect because it is a highly complex layer of nerve tissue at the back of the eye that cannot be transplanted due to the impossibility of reconnecting millions of delicate nerve pathways.
(C) Iris is incorrect because this colored muscular ring controls the amount of light entering the eye and is not the structural tissue replaced during sight-restoring transplant procedures.
(D) Optic nerve is incorrect because it functions as the main data cable sending signals from the eye to the brain, and modern medicine cannot transplant or splice central nervous system pathways.
The correct answer is (B) Cornea because it is the specific transparent outer tissue of the eye that is harvested and transplanted to restore vision.
Keratoplasty Procedure: When a person donates their eyes after death, a surgeon utilizes the clear, dome-shaped front surface known as the cornea to replace a recipient's damaged or diseased cornea in a surgical procedure called a corneal transplant.
Structural Limitations: Unlike the cornea, complex neural frameworks located in the back of the eye cannot be repaired or reattached to a new host through modern transplantation methods.
Incorrect Options:
(A) Retina is incorrect because it is a highly complex layer of nerve tissue at the back of the eye that cannot be transplanted due to the impossibility of reconnecting millions of delicate nerve pathways.
(C) Iris is incorrect because this colored muscular ring controls the amount of light entering the eye and is not the structural tissue replaced during sight-restoring transplant procedures.
(D) Optic nerve is incorrect because it functions as the main data cable sending signals from the eye to the brain, and modern medicine cannot transplant or splice central nervous system pathways.
In eye donation, the cornea is the part of the eye that is transplanted. So the answer is (B) Cornea.
The cornea is the clear dome-shaped surface at the front of the eye. It helps focus light entering the eye and plays a crucial role in vision.
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