Plot: Mary starts to be able to distinguish light from dark and the Ingalls believe she is regaining her sight. Mary is taken to the specialist only to discover that a brain impulse was causing her to see light when she felt the heat from the sun coming through a window

Little House On The Prairie - Season 5 - The Enchanted Cottage (Episode 21)
Episode Aired On:
Sunday, February 25 1979
46 years ago
Sunday, February 25 1979
46 years ago