COLUMBUS, Ohio (AP) — For Katie Roddy, there is no such thing as seeing a word and sounding it out.

Like others with dyslexia, Roddy's brain processes words differently.

She knows that now, at age 16. But as a young child, how do you explain to your well-meaning teachers and parents that you can't put letters together into sounds? Instead, you have to memorize the shape of every single word.

"I still remember some nights, in like third grade, I had meltdown after meltdown," Roddy said. "I was like, 'I can't get it! I'm dumb! I can't do this!' "

Relief from her learning disability, though, came...