After Bolineni hospital in Nellore district conducted surgeries as part of a 'free eye camp' programme on Oct 19, at least six people returned the very next day with complaints of 'bleeding and oozing of water and pus'.
The patients were later shifted to a leading corporate eye hospital in Chennai.
Five out of the six people reportedly lost vision because of infection in the Chennai hospital while a total of 11 people have lost their vision due to the infection.
There are 20 other patients who are still undergoing treatment in Shanker Netralayam at Chennai.
While hospital sources claim that the infection could have been due to eye drops and other chemical used and due to the surgery it self, an investigation has been launched into the incident.