This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Ophthalmology
[{'content': 'Enucleation means - \nSelect and explain. \nA. Removal of the contents of globe, B. Removal of the contents of globe and sclera except a frill around the optic nerve, C. Removal of entire globe along with portion of optic nerve, D. Removal of the entire contents of orbit', 'role': 'user'}, {'content': 'Answer: C \nExplanation: There are three main surgical techniques by which all or part of the orbital contents are removed :-\n\n\nEvisceration: - Removal of the eye with its inner two coats, leaving behind the sclera and extraocular muscles.\nEnucleation: - Removal of eyeball with a portion of optic nerve from the orbit while preserving all other orbital structures.\nExenteration: - It is the most radical of the three procedures and involves removal of the eye, adnexa and part of the bony orbit.', 'role': 'assistant'}]