In the eye donation, which part of the eye is transplanted from the donor ?

The part of the eye transplanted in eye donation is the cornea (option 1). Corneal transplantation (keratoplasty) replaces a diseased or damaged cornea with healthy donor corneal tissue to restore vision; globally millions with corneal blindness can be helped by corneal grafts, as noted in donor/recipient discussions and the potential to cure about 4.5 million corneal blind people through corneal transplantation [1]. Corneas are explicitly listed among common transplantable tissues and are routinely used in surgical restoration of sight [2]. Anatomically, the cornea is the transparent front membrane of the eye responsible for most refraction, making its replacement directly effective at restoring clarity of vision [3].

Sources

1. [1] Science , class X (NCERT 2025 ed.) > Chapter 10: The Human Eye and the Colourful World > QUESTIONS > p. 164
2. [2] Science , class X (NCERT 2025 ed.) > Chapter 5: Life Processes > Organ donation > p. 98
3. [3] Science , class X (NCERT 2025 ed.) > Chapter 10: The Human Eye and the Colourful World > 10.1 THE HUMAN EYE > p. 161