Low luminance reduces face recognition, especially among those with central vision loss


A study published in Ophthalmic and Physiological Optics found that adults with central vision loss exhibit reduced face recognition accuracy, especially under low luminance conditions. The study compared individuals with central vision loss, peripheral vision loss, and controls in facial recognition tasks. Results showed a significant decrease in facial identity discrimination and facial expression recognition accuracy under low luminance for the central vision loss group. Worse visual acuity and contrast sensitivity were associated with reduced face recognition, with photopic visual acuity proving to be a strong predictor. These findings have implications for clinicians managing challenges faced by patients with low vision.

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