The False and the True (1914)

Betty, the only daughter of Jenkins, a wealthy farmer, is secretly loved by Tom Saunders, a farm hand. Tom's scapegrace brother, Dick, returns from the city and is befriended by Tom. Dick later wins Betty's love. While Jenkins is blasting out a tree stump with dynamite, Betty and Dick are passing close by unnoticed, and the explosion destroys Betty's sight.