Vision restoration therapy: confounded by eye movements

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Abstract
Recently Sabel, Kenkel, and Kasten co-authored a report showing that vision restoration therapy does not improve field defects in patients with cortical lesions.1 This finding was a disappointment because it dashed hopes that vision restoration therapy might benefit patients who suffer visual field loss from stroke, tumour, or trauma involving the occipital lobe. In a new twist, Sabel and colleagues have now written an editorial stating that “we have no objections to the data as presented” (an unusual remark from the co-authors of a study), followed in the next breath by a long argument repudiating the main thrust of their report.2 If readers are confused, they are not to blame.