Processed meats such as sausage, hot dogs, beef jerky and canned meats are loaded with sodium. Diets with high levels of sodium may add to your cataract formation which leads to restricted flow of blood to your eyes causing blurry vision and in some blindness. It may also increase the risk of getting heart diseases, high blood pressure, and stomach cancer. Consider eating whole grains like oats, nuts, wheat, millet, because the more you eat these, the less risk you stand.
Margarine may contain some essential nutrients which helps the body, but it also contains trans fat which raises cholesterol and thicken blood platelets which increases the risk of getting eyes and heart diseases.