It’s a question that lingers in the minds of many who witnessed the chaos unfold: what exactly happened to Aizawa’s eyes? We saw him activate his Quirk, his hair standing on end, desperately trying to nullify the Nomu’s abilities. Then, in a blur of motion, the monstrous creature was upon him, a fist raised, and everything went dark for a moment.
From the perspective of those watching, it was a terrifying instant. Aizawa, the teacher who could erase Quirks, was struck with such force that he was sent flying. The sheer power of that blow was palpable, a gust of wind that left everyone stunned and disoriented. In that moment, the immediate concern wasn't about Aizawa's eyes specifically, but his very survival. The thought of him being unable to protect his students anymore was a far more pressing dread.
While the reference material details the subsequent fight – No. 13’s desperate use of her black hole Quirk, the Nomu’s incredible regeneration, and Todoroki’s icy intervention – it doesn't explicitly state the damage inflicted on Aizawa’s eyes during that initial, brutal encounter. What we do know is that Aizawa’s Quirk, Erasure, has a significant drawback: prolonged use causes his eyes to dry out and bleed. This is a known vulnerability, a physical toll that comes with his powerful ability.
During the USJ incident, the Nomu’s attack was incredibly swift and powerful. It’s highly probable that the impact of that punch, or perhaps the sheer strain of trying to counter the Nomu’s overwhelming strength, exacerbated this existing weakness. The reference material focuses on the immediate aftermath and the subsequent fight for survival, but the visual evidence from later events strongly suggests that Aizawa sustained severe damage to his eyes. The need for him to wear specialized goggles, which help mitigate the strain of his Quirk, points to a lasting injury. While the exact moment of eye damage isn't described in graphic detail, the context of the Nomu's attack and Aizawa's known Quirk limitations paint a clear picture of a critical injury sustained during that desperate defense.
