No, it is not possible for you to change the eye color by using some vitamins. As we know, the color of eyes is fixed according to the genetic endowment which will not easily change. However, if you have the problems in the body, you may get the eyes to change the color. For example, if your liver has the problem, you may have the yellow eyes. If you have the eyes infection, you may have the red color. Thus, you should take great notice of the color change of the eyes. If there is the change of the eyes, you'd better go to see the doctor and find the real problems. Then you could treat it.