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
Enucleation is done for -a) Retinoblastomab) Malignant melanomac) Glaucomad) Pthisis bulbie) Vitreous hemorrhage 
Select and explain. 
A. abd, B. bcd, C. abc, D. ab
A: abd
Answer: A: abd 
Explanation: Indications of Enucleation 

Absolute: - Retinoblastoma, malignant melanoma.
Relative: - Painful blind eye, mutilating ocular injury, anterior staphyloma, phthisis bulbi, endophthalmitis, congenital anophthalmia or severe microphthalmia.

Indications for evisceration 

Endophthalmitis not responding to antibiotics
Improvement of cosmosis in a blind eye
Panophthalmitis

Indications of exentration 

Large orbital tumors
Orbital extension of intraocular tumor