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.
În al 2lea Război Mondial, a observat că piloții se întorceau din misiuni și că aveau în ochi mici bucăți de material, înfipte în ochi, dar interesant materialul nu cauza nicio reacție inflamatorie.