We know that certain individuals are more likely to lose their sight. Your genetic makeup and lifestyle choices play a major role in predicting the future of your sight. Most people who have sight loss carry genetic risk factors. For example, glaucoma, macular degeneration and diabetic eye disease, all leading causes of sight loss, have genetic tendencies. If that were the whole story then it would be easy to resign our fate, but there is hope. The way our genes express themselves can often be altered by lifestyle choices. Diet, exercise, and healthy habits play a role in improving your odds for the future.