Are eyevital/riconia caps (multivitamin antixoidants) safe to take along with lutein+zeaxanthine supplements for an extended period? Contraindication?

safe. These products have been recommend to slow the progression of macular degeneration in those who already have this condition. There is no data or proof that they are preventative and no evidence that they are helpful in any way. So they might help/or might not but the only harm is the cost of the product.