They said those bright lights gave your dad's peepers an overload.
3 seconds sound clip from Darkwing Duck - Duck Blind (S1E8).
You can hear this line at 00:05:31.358 in the DVD version of the episode.
Quote context
[...]
- Hey, stop! Darkwing, he's getting away-ay-ay!
- Launchpad, would you turn on the lights?
- Nothing. Absolutely nothing!
- But how long will he be blind?
- They said those bright lights gave your dad's peepers an overload.
- Hey, I know it sounds bad, but your dad's a trouper. He'll be OK.
- Yeah, Gosalyn, blind people do all sorts of stuff. Like, like, like Johann Sebastian Bach.
- Johann played piano. Nobody was shooting at him.
- My dad knows how to fight crime, period. What's he gonna do now?
[...]