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.
While flaxseeds are an excellent source of omega-3 fat, they only contain one basic member of the omega-3 fat family. In the case of flaxseeds, virtually all of the omega-3 fat is found in the form of alpha-linolenic acid (often abbreviated ALA). This specific kind of omega-3 fat makes up about 50% of the oil in flaxseeds.