1. We admit that we’ve been seeing the situation through rose-colored glasses , and now we must face the situation and see it as it really is.
2. Parents almost always have trouble seeing their children the way the rest of the world sees them. Instead, they look at them through rose-colored glasses.

The expression suggests that a person looks at something with glasses (eyes) that are not clear. Instead he uses rose (pink)-colored glasses that give a falsely good view of something.