The only time my eyes get crossed is when I have too many Budweisers.
I have heard that the eyes have the most sensitive blood vessels in your body, if you have high blood pressure like me, your eyes will suffer. Get your blood pressure checked, and get it under control. I did and I feel great, no more headaches and I feel much better, ask my wife, she is living proof of this.
Happy wife, happy life!
Gary
#55 Honda CR80