Cover test to check eye alignment. During a cover test, your eye doctor will have you focus on a small object across the room and then he or she will cover each of your eyes alternately while you stare at the target.
They are mostly found in plant foods, such as nuts and oil. They include unsaturated fats -- monounsaturated and polyunsaturated -- and omega-3 and omega-6 fatty acids. Omega-3 fatty acids, which are found in fish, walnuts, and flaxseed oil, are thought to reduce the risk of heart disease. For this reason, three servings of fish a week are recommended. Types of Healthy Fats. 1  Monounsaturated fat is in olive and canola oil, avocados, nuts, and all-natural peanut butter.
Fatty fish such as salmon, mackerel, herring, sardines, and tuna; Flaxseeds; Nuts, especially walnuts; Even though food should be your main source of omega-3 fatty acids, most Americans don't get enough of this nutrient from diet alone. If that's the case with you, your first step should be to eat more fish and other omega-3 foods.