 As Urkel tweaks his transformation chamber to enable him to be Stefan all the time, Carl begins complaining about his eyesight. Instead of going to the opthamologist (per Harriette s recommendation) to have his eyes checked, he asks Stefan to allow him to use the transformation chamber to fix his eyesight. However, Myra is starting to miss Urkel and tampers with the machine. However, Stefan isn t in the machine, and Myra finally realizes what she has done when Carl Urkel steps out!