Apigmatism (not to be confused with astigmatism), is an optical defect in which vision is altered causing ugly, homely, overweight women to appear beautiful in the eye of the afflicted. Many liken this condition to Beer Goggles, however to suffer from this condition, one does not necessarily have to be drunk.
What do you mean she was good looking? You must have apigmatism! Go see an ophthalmologist.