This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Traumatic Lesions, Subject name: Ophthalmology
Purtscher retinopathy is seen in patients with - 
Select and explain. 
A. Complication of chronic pancreatitis, B. Occlusion of anterior retinal artery, C. Head trauma, D. Diabetes mellitus
C: Head trauma
Answer: C: Head trauma 
Explanation: Ans. is 'c' i.e., Head trauma Purtscher retinopathyo Occurrence of bilateral patches of retinal whitening and hemorrhage around the optic disc in patients who suffered massive head trauma was first described by Purtscher and is called Purtscher retinopathy.