The Prevention of Blindness Trust (PBT) is holding a free eye surgery camp under the aegis of Pakistan Islamic Medical Association (Pima) here on December 15. Highly qualified doctors and medical staff will perform eye operations free of cost at the following place: Adamjee Eye Hospital, SNPA 39-B Block C, Adamjee Nagar Dhoraji Colony from 11.30 onwards, according to an announcement made by Pima.