 I look back when I've got corrective lenses, I've got glasses, and I've had it ever since sixth grade and when I was a kid and such. And when you're a kid, especially if it's a gradual, you don't really realize it because it's your experience. It's what you know. And I remember walking into sixth grade after you did glasses going, wow, I can actually read the board. I thought it was just too far away.