He stated that the pain of ciliary neuralgia was localized within or behind the eye and was associated in many cases with conjunctival injection and lacrimation. He commented that eight of his 23 patients had the onset of headache between age 40 and 50 years and that the onset of pain was 'commonly in the early hours after midnight' (16). Ten of his 23 patients noted conjunctival congestion and injection as well as lacrimation.