Well, in my opinion, you can just intake some foods which contain a lot of vitamin d, for high levels of vitamin D may be able to prevent or slow the process of macular degeneration. First, you should know that by in taking much vitamin D, it could help to prevent age-related diseases, in particular loss of vision and blindness. In that way, you can just slow down the progress of macular degeneration. As we know that vitamin D also reduce numbers of cells called macrophages, which play a vital role in the immune system and can also trigger inflammation. So just take some. Catfish, eggs, and cod liver oil are rich in vitamin d. So you can have a try.