Double Vision - S5.E14

A female radio talk show host witnesses a murder on her way home. As the killers are about to shoot her too, TC saves her life. But the flash from his gun blinds the woman. TC becomes obsessed with protecting her due to his guilt and her resemblance to the love of his life, Chris Kelly. The woman doesn't know he's the one who robbed her from her sight, she just thinks he's a caring cop. This leads to a romans. But after a while the womans sight beings to return.