Redness in eye. Of eye vision?

Hi sir, I am suffering from long time redness of eye. I have visited many doctor but not get better result. My eye become red and watery after some  time in frequent way. I have submitted my report and medicine. Please let me know that what should I do for my eye. Drop which I am am using present giving some relief only. When I use these drop it get good but after some vein of eye become red.What precautions should I take and I should go for these medicine or I should visit my doctor. Doctor has said that you have dry eye conditions.Doctor has prescribed me for eye bake,should I go for this or it will be ok after using medicine only.Eye bake is good or not. Sir,Dry eye is serious condition? I am very worry about it. My vision be present or not. Due to redness there will be disturbance of eye vision? Please clear my doubt Thanks you.