Reminds me of my first eye exam as a nearsighted youngster. The doctor told me to go look out the window with a pair of temporary lenses. I exclaimed to my mom that those dark splotches on hillsides were trees!
When I first got glasses circa age 9, my first remark upon leaving the shop was, "oh, wow, I can see the leaves from here!" (standing under ca. 20-30 foot tall tree)
My mother later said she had never felt so guilty.
At the beginning of the day I would take note of what color clothing my friends were wearing so that I could find them at recess, and assumed it was a problem everyone had.