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.
Fish oil and flax oil are both dietary supplements that are high in omega-3 fatty acids. Omega-3s are vital for body function and have to come either from the diet or from a dietary supplement.hile you can also find flaxseed supplements that contain whole or ground flax seeds, the oil contains concentrated amounts of omega-3 fatty acids. Flax oil is high in the other important omega-3: ALA.