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
Traumatic eye with late presentation of hyperaemic sclera with unilateral proptosis is due to : 
Select and explain. 
A. Retrobulbar hematoma, B. Retrobulbr cellulites, C. Carotico-cavernous fistula, D. Pneumo-orbit
B: Retrobulbr cellulites
Answer: B: Retrobulbr cellulites 
Explanation: B i.e. Retrobulbar cellulitis Retrobulbar cellulitis is the only option which can present late after trauma to eyeQ. Pneumo-orbit, Retrobulbar hematoma & carotico-cavernous fistula - all present early after trauma. U/L proptosis can be present in all but hyperemic sclera also ours diagnosis of retrobulbar cellulites or CCF.