My father (60) had a cataract surgery on 15th November. Nothing happened for next 2 weeks but 3 days ago while brushing, my father complained about pricking sensation in eye which disappeared as soon as he stopped brushing. Next day, there was clear discharge from eye (first time it happened). I took a look at his eye and most of it looks good and clear, except some redness in the far upper portion which is visible only if he's looking downwards. He was given Prednisolone and Ciprofloxacin eye drops which he took regularly (except 4-5days in the middle where he missed few doses due to traveling). Today just an hour ago he again complained about pain in the eye though he says it's not prickly but just general pain. He says his vision is normal. What steps should be taken?