<prompt> A 50-year-old male patient gives history of STD acquired 20 years back, now complaints of headache, seizures, confusion and numbness in extremities. Which of the following will be true about the pupillary response of the above patient?Light reflex and accomodation reflex absentLight reflex and accomodation reflex presentLight reflex absent and accommodation reflex presentLight reflex present and accommodation reflex absent  <response>: Ans. c Light reflex absent and accommodation reflex presentRef: Kanski 7e, p. 815STD with neurpsychiatric symptoms hints towards patient having Neurosyphilis.Argyll Robertson pupil is seen in Neurosyphilis, which presents withIrregular, small pupil in dim lightIn bright light, neither pupil constricts Light reflex absentOn accommodation both pupil constrict Accomodation reflex absent 