I've had glasses for the past decade. Although I upgrade to contacts when I'm out and about. Waiting to get monies and eventually surgery or something. There's meant to be these contacts you wear at night while you sleep and they smush your eyes into the proper shape (most people's eyes are soccer ball shaped, mines are like rugby balls).
Currently I think I'm pretty blind at -2.5D. I don't know anyone with worse eyes than mine.
Although for anyone interested (whih is probably no one), Claudia Winkleman has (or had) a prescription of -14D. That's why she always kind of squinted when she presented stuff and clung on to her co-hosts, everything was super blurry to her.
and re: "bespectacled", the word's pretty self explanatory, what with spectacles, and the prefix be- meaning to wear/use. Clue's in the name.