system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A patient presented with normal eyesight and absence of direct and consensual light reflexes. Which of the following cranial nerves is suspected to be lesioned
assistant
The correct answer is  For light reflex, CN2 and CN3 are required. Since vision is normal CN2 is intact. Probably lesion is at the level of CN3