question: Hello doctor, My father has night blindness and his overall vision is very bad. He is taking some medication to keep his vision from degrading. He has been given advise to try Ocuvite lutein and I am not sure whether that is a good product for him. I am not aware of the side effects associated with it. I would like to know what we can do to keep his vision in a good state. Currently, he is taking some blood thinning products such as Aspirin. Please help.