Perhaps it helps to think of disability this way to shake the idea that it has to be a permanent state. If I break my leg, but it eventually heals, was I not temporarily disabled?
(If I wanted to be snide, I'd include "using Windows".)
To look at it a different way, isn't a person with healthy eyes as equally disabled as a blind person when they're in a completely dark room? The source of the disability is not as important as the outcome.
