Causes of Swelling under One eye. Sometimes, the swollen under eyes may be associate with fever, pain or itchiness in the eye or distorted vision. Such conditions could be a sign of some serious eye problem. There are more than 100 causes which can contribute to puffy eyes; out if which some might be rare.
If you overload your liver (drink too much at one time), the excess alcohol will end up circulating in your bloodstream affecting your brain, heart and other tissues resulting in you becoming increasingly intoxicated.
If that's not bad enough, then consider the fact that, over the long-term, alcohol can cause you to be more likely to get sick and can result in severe liver damage. This is because alcohol leads to a condition called cirrhosis, which is the scarring of the liver.