I feel pain in the eyes many times a week. Sometimes I think I have lost the intensity of vision in the eyes and it is not like before. I also experience headache along with eye pain. Sometimes my eyes pain looking at bright area when I go from dark to bright area. Once or twice I noticed shadow of some object for few seconds slightly away from the original object. I have power of -1.5 in left eye and -2.5 in right eye. I used to have gelatin tablets for 5 months. How can I get back my lost intensity in eye vision. I also experience some black floaters as well for few seconds.