<prompt> In which of the following condition paradoxical pupillary reaction is present?SyphilisTumors of quadrigeminal regionSleeping individuals who have taken barbituratesAll of the above  <response>: Paradoxical pupillary reaction is present in patients with syphilis, tumors of quadrigeminal region, sleeping individuals who have taken barbiturates and in trauma. In paradoxical pupillary response either: The pupil dilate with near vision or constricts in distant vision The pupil dilates on exposure to light or constricts when light is withdrawn Ref:Textbook of Ophthalmology edited by Sunita Agarwal page 308 