This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vitreous and retina, Subject name: Ophthalmology
Puscher's retinopathy is seen in patients with 
Select and explain. 
A. Complication of chronic pancreatitis, B. Occlusion of anterior retinal aery, C. Head trauma, D. Diabetes mellitus
C: Head trauma
Answer: C: Head trauma 
Explanation: (Refer: AK Khurana Comprehensive Ophthalmology, 6th edition, pg no. 428 - 432)Puscher 's retinopathyThe occurrence of bilateral patches of retinal whitening and hemorrhage around the optic disc in patients who suffered massive head trauma was first described by Puscher and is called Puscher's retinopathy. Puscher's retinopathy is a disease where pa of the eye (retina) is damaged. Usually associated with severe head injuries, it may also occur with other types of trauma, such as long bone fractures, or with several non-traumatic systemic diseases. However, the exact cause of the disease is not well understood