Goggles are nice. They provide a tinted view of the world. Change the colour of the glass and the world changes. No-colour brings excessive clarity. Eyes can't take it. They find solace in the stained sight.
Eyes on the opposite side of goggles, not covered with any goggle, try to push their vision beyond the glass boundary of goggles. But the real eyes are not visible. When they stare hard enough, all they get to see is their own reflection. Looking at themselves, they think, is this a pleasant sight? Eyes can't decide. All they decide is to wear a goggle.
Now either eyes, when stare at each other, can only see goggles - the other goggle and a reflection of own goggle.