I would imagine that you remember a few scenes sort of similar to this...
This is meant to portray Luke's departure from Hoth Base prior to his... accident.
Now, I don't know my Star Wars history very well, but I've been told that Mark Hamill had a fierce car accident between movies, which resulted in facial reconstruction and plastic surgery for him.
Thus, the scene at the start of Empire when he gets smacked in the face by a monster, after having been all wrapped up in scarves because of the cold beforehand.
This piece is available for sale online: