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
A 65 year old man complains of difficulty in reading newspaper with his left eye, three weeks after sustaining a gunshot injury to his Right eye. Diagnosis is 
Select and explain. 
A. Macular edema, B. Retinal detachment, C. Sympathetic ophthalmitis, D. Hyphaema
C: Sympathetic ophthalmitis
Answer: C: Sympathetic ophthalmitis 
Explanation: It is a serious bilateral granulomatous panuveitis which follows a penetrating ocular trauma.