Healing of Marie Biré (Lucas)

On 14 February 1908 Mrs Biré showed alarming signs: vomiting of blood, incipient gangrene of her left forearm. She became comatose; on coming out she discovered she was blind—"blindness from bilateral optic atrophy" due to cerebral incidents. On 5 August 1908, after attending Mass at the Grotto, her sight returned suddenly. An oculist at the M.B.V. noted she still showed "retinal pallor of cerebral origin" but could read "the smallest print in a newspaper." Anatomical signs persisted—yet vision had been restored. The Bishop of Luçon officially recognized the cure as miraculous on 30 July 1910.

The Lourdes Medical Bureau gathered documentation; the International Medical Committee (C.M.I.L.) affirmed the cure was inexplicable in the current state of medical knowledge. The Bishop of Luçon recognized it on 30 July 1910. Optic atrophy and cerebral blindness are typically permanent. Restoration of vision has no medical explanation.