And during World War II, what he would see would be pilots coming back from their missions, and he noticed that within their eyes they had shards of small bits of material lodged within the eye, but the very interesting thing about it was that material, actually, wasn't causing any inflammatory response.
Y durante la 2ª Guerra Mundial, vio a pilotos que volvían de sus misiones y notó que dentro de sus ojos tenían fragmentos pequeños de material alojados dentro del ojo. Pero lo más interesante era que el material no estaba causando ninguna reacción inflamatoria.