<P> 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 ) . </P>
<P> 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 ) . </P>
how did lionel luthor get his sight back
how did lionel luthor get his sight back
his eyes healed
his eyes healed