Hello Sir My Father Had A Surgery In 1996 In

hello sir my father had a surgery in 1996 in madras. his cornea has changed and its been 19 yrs now its creating a problem from last 2 yrs. his eyes swells up, reddishness is there, dryness, sometimes watery, and some more problem is there with his eyes. and also its becoming white day by day, very painful it is, plzzzzz help me sir