good work. But as I looked, my brand-new glasses were sliding down my nose, and I had to adjust them. Suddenly it hit me: it wasn’t the slides at all. It was me all along! My eyes had been getting progressively worse, and that’s why the words on the screen had become more and more fuzzy. It was only when I put on my glasses that I was able to see properly—and not just the world around me, but also my own condition. I was the problem! This story illustrates what happens when we are given sight through