Can't hurt to eat... Carrots, but probably will not make a huge difference. See an ophthalmologist (eye doctor) to make sure your eyes are okay. Only relationship between extra vitamins and eyes is for possibly slowing progression of macular degeneration, an eye disease. Try eating more fish high in omega 3 fatty acids. May help.
You can... But why are you taking them in pill form in the first place? Better to get your vitamins from whole foods. See http://ods.Od.Nih.Gov/factsheets/vitamina-healthprofessional/ and http://ods.Od.Nih.Gov/factsheets/vitamine-healthprofessional/ for food sources of vitamin a and e.