Others may see the page of text swirling. It's a little difficult to keep turning the book to follow the words. Some people see the text shaking. It appears that you are trying to read on a bumpy road. Others see the words as seesaws.
Some people just see the page as totally blurry or out of focus.
Perhaps only a few words are in focus, but the rest need some serious tracking. Yet others see the p age with little rivers flowing down it. It looks like the spacing needs to be adjusted. People have to fight these text problems just to read a page. Usually they get tired of the struggle and stop reading.