Frank Herbert's Children of Dune: The Messiah

This episode starts 12 years after the first Dune miniseries. Duke Paul Atreides has become emperor. During an attack he is blinded but utilizes his "visions of the future" to see. Chani his concubine has given him twins - Leto II and Ghanima. When his children are attacked, Paul uses Leto's eyes to see and avert the danger, but in the process loses his psychic vision and becomes completely blind. In accordance with Fremen custom, he walks into the desert and leaves his children in the care of his sister, Alia.