I can't take my eyes off of you. Chewing gum while peeling onions will keep you from crying. I only have eyes for you. The pupil of the eye expands as much as 45 precent when a person looks at somthing pleasing. The light in your eyes. The eye can distinguish 500 shades of gray. Sailors once thought that wearing a gold earring would improve their eyesight, wow, is that where that started! The bluest eyes in Texas. It is impossible to sneeze without closing your eyes.