Well, blurry vision is a loss of sharp vision. You may experience sudden or gradual blurry vision in one or both eyes. It can result from many problems, such as infection, inflammation,allergy, and of course, there are still some kinds of food can lead to blurry vision. First of all, excess sugar can decrease the storage of trace element chromium in our body, which is one of reasons. Besides, garlic is beneficial to anything but our eyes, thus you'd better keep these pungent foods, like garlic, ginger, pepper and so on in moderation. In addition, alcohol is another reason, indulge in excessive drinking can also stem from blurry vision. Therefore, for the sake of your eyes, portion control is necessary. Just obey it for your health.