The main seer, Conchita, said, clearly and on several occasions, that he Joey Lomangino would get new eyes on the day of the miracle. This was something she claimed Our Lady had told her.
No attempt was ever made to retract that statement or qualify it. The stated and clear interpretation was always that a living blind man would be given new eyes and his vision restored.
He was an Italian American blinded, aged 16, when a truck tyre exploded in his face. Some 16 years later he was in Garabandal during the apparitions as he had built up and sold a refuse business and had enough wealth for a tour of Europe.
He spent the rest of his life promoting Garabandal.
There is an interview with him from 10 or so years ago on EWTN