This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Raised ICP and Brain death, Subject name: Medicine
Ocular bobbing is seen in: 
Select and explain. 
A. Midbrain damage, B. Pontine damage, C. Medulla damage, D. Cerebellum damage
B: Pontine damage
Answer: B: Pontine damage 
Explanation: Ocular bobbing: Brisk downward and slow upward movements of the eyes associated with loss of horizontal eye movements. Diagnostic of bilateral pontine damage, usually from thrombosis of the basilar aery. In contrast, ocular dipping is slower arrhythmic downward movement followed by faster upward movement in patients with a normal reflex horizontal gaze. It indicates diffuse coical anoxic damage.