I have heard that the vitA palmate which is not the same as a cartenoid, is best. You may try E3 Live Blue Green algae supplimnet for Vit A. Meat and dairy produces toxins in the blood which will not help the eyes breathe. You need clean blood. Eat fruits, vegetables, fish, kefir, rice and beans. Read Andreas Moritz
's "time to wake up" for eye exercises and healthy tios. also Body Ecology diet to learn about kefir and proper blood pH. Also The Key to Health and Rejuvination and the ultimate liver cleanse by ndreas Moritz will be valuable for you to clean your liver and choose the appropraiate foods for your body type. Its up to you how healthy you want to be. You can do anything, you just have to take responsiblity for your life and health. Its hard at first, but it gets easier. If you want anymore books or details let me know.