Mario Teran
, a Bolivian army sergeant who who executed revolutionary leader Che Guevara in 1967, restore his sight after his cataracts were removed by Cuba's doctors under a Cuban programme to offer free eye treatment across Latin America.
The operation on Mr Teran took place last year and was first revealed when his son wrote to a Bolivian newspaper to thank the Cuban doctors for restoring his father's sight.
But Cuban media only took up the story this weekend as the island country prepares for commemorations to mark Che Guevara's death 40 years ago.
"Four decades after Mario Teran attempted to destroy a dream and an idea, Che returns to win yet another battle," the Communist Party's official newspaper Granma proclaimed.
Source: Cubans treat man who killed Che @ BBC