Much attention is being paid to the impact various lifestyle factors may have on the development and progression of the disease. High blood pressure and smoking are definitely contributory factors. If you smoke, this is the time to stop. Watch your blood pressure and your diet.
Nutrition appears to play a role in the health of the macula.
In addition to supplements, there are common food sources for the vitamins, minerals and other substances necessary for good retinal health. In general, the kind of low fat diet that supports cardiovascular health is one that also contributes to healthy eyes. Finally, protect your eyes from the damaging rays of the sun by using a hat or visor and sunglasses.