A few years ago, the White Knight would have let his Name augment his sight and seen through the dark without missing a beat. He’d been taught better since, by a green-eyed killer who’d delighted in brutally punishing his every bad habit. If darkness had been laid here, it was not because his opponent had expected him to be blinded by it. It was because the moment his sight adjusted a nasty surprise was to be sprung on him.

...

The last part of the sequence, strengthening his eyes against light, came the moment he caught a glimpse of a silhouette within the dark. A fraction of a moment later there was a loud bang and a flash of burning light – the kind that would have seared his eyes powerfully, were he adjusting them to see in the dark. Instead it merely stung and stinging he could suffer through without batting an eye.

- Extra Chapters: Winter IV