Talk:X-Ray Vision/@comment-5920043-20121228224744/@comment-5920043-20121229000709

They could just be the artists graphic display that he was narrowing his field of vision. Supermans powers have evolved over the years giving him the power to see the full electromatic spectrum so he may be just narrowing his field of vision to see thru things. Superman was created in 1939 and x-ray tech was just getting started in the 1910's so they just added it as a cool (which it is) thing to have. But if he really is producing X-rays from his eye's than the cancer rates in Metropolis must be abnormally high.