The cat is uncomfortable with one eye slightly open. You need to check whether there is any foreign matter in the eye first, and then clean the cat's eyes with saline. If there is no foreign matter, it may be caused by bacterial infection, and you need to give the cat eye drops. . You should clean foreign objects in the cat's eyes regularly to avoid infection or getting into the eyes. Don't eat too greasy food. Feed the cat an appropriate amount of fruits and vegetables to achieve a balanced nutrition.