Anatomical and functional MRI data for Braille and phonological noun pair assessment test was acquired in 40 early blind (EB), forty late blind (LB) subjects and thirty sighted controls (SC) in two age groups 6-12 years and 13-19 years (all right-handed). Visual impairment induces structural and functional modification in the visual cortex. Late blind subjects exhibited differences in the V1 13-19 years age range, but not in the 6-12 years age group. Duration of blindness and education influence the extent of plasticity of the V1 and language network.
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