Freak

S6 E15: Clark and Chloe discover that Tobias (Greyston Holt), a young man who was blinded during the meteor shower and now has the ability to identify "meteor freaks," is being used by Lex to locate people with special abilities in order to experiment on them. When Lana finds out about Tobias' gift, she fears that he will expose Clark and offers Tobias a cornea transplant in exchange for his silence. However, she is not prepared for Tobias' shocking revelation. Series star Michael Rosenbaum directed the episode.