<prompt> What is epiphora?Eveed upper lid following surgeryCSF running through nose after injuryAbnormal flow of tears due to obstructed lacrimal ductCSF running through ears after injury  <response>: Epiphora- It is characterised by overflow of tears from the conjunctival sac. The condition may occur either due to excessive secretion of tears hyperlacrimation or may result from inadequate drainage outflow of normally secreted tears. CSF running through nose after injuryCSF Rhinorrhae-MC Cause -fracature of cribriform plate of ethmoid CSF running through ears CSF otorrhea seen due to fracture of mastoid bone 