This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of orbit, Lids and lacrimal apparatus, Subject name: Ophthalmology
Orbital apex syndrome constitutes all except - 
Select and explain. 
A. Ptosis, B. CSF rhinorrhea, C. Ophthalmoplegia, D. Pain over distribution of optic nerve
B: CSF rhinorrhea
Answer: B: CSF rhinorrhea 
Explanation: Orbital apex syndrome refer to symptom complex prodused by involvement of structures present at the apex of orbit ie, structures passing through superior orbital fissure and optic canal. Ref. Ak khurana 6th edition pg no 413