There is clearly a genetic component - and your risk of AMD is higher if there are other family members who have it. We don't fully understand how this works. Much of the research is focused on identifying the gene or genes of AMD and figuring out why some people get it and others don't. You may have developed it because of lifestyle factors such as diet, smoking, high blood pressure or exposure to ultraviolet light. Unfortunately, we don't have all the answers to this question.
Some people find immediate help in using common hand-held magnifying glasses.
For many people, this approach is not enough. Just as your eyeglasses are a different prescription from someone else, your magnifier may need to be professionally prescribed. See a low vision specialist or contact one of the resources in our Related Links. You can also explore other devices such as closed circuit television, screen readers or voice systems. There is a whole world of assistive devices available.