Little House on the Prairie › Season 4

S4 E21: I'll Be Waving as You Drive Away (1)

Mary falls in love with Seth. When Mary's eyesight starts to get worse, Charles takes her to a specialist. He is devastated when the specialist tells him that Mary will lose her sight. Charles is unable to tell Mary for a while that she is going blind. When Mary does go blind, the whole family suffers.

Air date	Mar 6, 1978
Runtime	48 minutes