<prompt> Orbital apex syndrome constitutes all except-PtosisCSF rhinorrheaOphthalmoplegiaPain over distribution of optic nerve  <response>: Superior orbital fissure syndrome consists of deep orbital pain, frontal headache and progressive paralysis of CN 6, 3 and 4 and in that order. Orbital apex syndrome is superior orbital fissure syndrome along with the involvement of optic nerve and maxillary division of trigeminal nerve. Both these syndromes can occur as a complication of sinusitis. Ref: Dhingra 5the p.213 