In 1989, Lionel visits Smallville to buy the Ross Creamed Corn company immediately before a meteor shower occurs. Twelve years later during season one, Lionel exiles his son Lex Luthor (Michael Rosenbaum) to Smallville to run LuthorCorp 's local fertilizer plant as a test. When Lex makes a profit for the first time in years, Lionel closes the plant and blames Lex 's poor managerial skills. Lionel later confronts his son at the Luthor mansion when Lex tries to orchestrate an employee buyout to save the fertilizer plant. When strong winds force debris to smash through the mansion, Lionel is pinned under a fallen support beam and Lex hesitates to save his father. In Season two, Lex saves Lionel but loses his sight because of Lex 's judgment to rush into surgery. Season two 's first half shows Lionel as blind. Lex and Lucas Luthor (Paul Wasilewski) -- Lionel 's illegitimate son -- devise a plan to uncover Lionel 's deception; it is revealed that Lionel was blind but that his eyes healed and he intentionally neglected to tell anyone so he could watch how they acted around him. Season two 's second half shows Lionel is aware of the Kawatche caves and tries to unlock the mysterious symbols there, to the dismay of Clark Kent (Tom Welling).
how did lionel luthor get his sight back
his eyes healed