Trust me, eyeglasses can not change the size of your ears, Most frames should be getting more support because they pinch the side of the head. Your ears contain lots of cartilage, so the likelihood of your ears changing size because of your glasses is unlikely. your ears may appear to be bigger because the frames create a vertical separation from the top and bottom of your head. It's all about ratios of top portion, bottom portion and how much space the ear takes up.