4. (1) It shall be lawful for a donee to enucleate, or cause the enucleation of the eyes of the donor and to use or cause to be used the eyes so enucleated to give effect to the donation. Explanation. “Enucleation” with reference to eyes shall include removal or extraction of such organ, tissue or other part of a body which is necessary for the utilisation of the eyes. (2) Where the eyes have been donated for the use and benefit of any particular person, they shall be so used; but if that person is not available for giving effect to the donation or that person does not any more need the donation, the eyes may be used, subject to any rules made in this behalf, generally for the relief of the blind. (3) Where the body of the donor requires post-mortem examination under law, enucleation of his eyes for the purpose of giving effect to his donation shall be subject to the requirement of such examination.