Lol i think it was foreshadowed in the first season that adam did lost his vision but it was unclear on what caused it. The narration going to eve/michael did it or it was somehow his fault. What we know is that it was somehow connected to guiding or inducer. But now ig that's not the case.
FYM HE LOST HIS VISION OMG BRO WE ARE LITERALLY FRESH IN SEASON 2