content: My brother was probably about 17 when he got his first pair of glasses. I remember distinctly his reaction- "Wait, so people are supposed to be able to make out the individual leaves on trees?". Imagine going through life just accepting that trees look like they have fussy greenish canopies of shapeless color. It would explain why he fell out of one and broke so many bones. But it's easy to tell when someone has bad vision. During road trips when we played the alphabet game I'd always spot the letters before him. If he were colorblind... how do you describe a color? How often do you get into situations where you need to tell the difference to someone else? Maybe if you were learning about mixing primary colors in art class and two mixes were producing the same apparent color or something, but otherwise it would never come up. To live that way, not realizing it... must be so weird.