Cyclops, A.K.A. Scott Summers possesses the gift of optic eye beams. When forced to jump out of a crashing plane as a child, the impact to his head damaged the part of his brain that would have allowed him to control this power. Using a rare mineral called Ruby-Quartz, he uses a visor in covert operations, and a pair of Ruby-Quartz sunglasses in his regular appearance. He's da man.