Pin point pupil is seen in all except: (A) Pontine hemorrhage, (B) Organophosphorus poisoning, (C) Opium poisoning, (D) Barbiturates poisoning
Answer is D. Pin point pupil can be caused by : Opioids (morphine), organophosphates, phenothiazines, clonidine, mushroom poisoning, chloral hydrate, carbolic acid and pontine hemorrhage.