Data and Code for: Schmid et al.: Blindsight and residual vision: How reliable is the redundant target effect as a diagnostic tool? (Cortex, 2026) The redundant target paradigm has been widely employed to assess blindsight in patients with homonymous visual field defects. The present review evaluates its diagnostic utility on the basis of published findings, with particular emphasis on estimates of sensitivity, specificity, and reliability. The provided files comprise data derived from previously published studies, together with analyses of the corresponding confidence intervals. For further methodological details, please refer to the manuscript.