I am 21 Years old Since my birth I didn' t have any eye problems but now a days am getting squint frequently. Two years before I practised to get squint jus for fun. I think those funs are the reason for my squint. And I felt severe pain in eyes. Even I can' t work for 5 hrs continuously. Dont know what to do. Is this disorder or some kind of vitamin deficiency? please suggest me some medicines to get cured.