Spatial frequency bands used by patients with glaucoma to recognize facial expressions

The authors investigated the influence of spatial frequencies in foveal vision glaucomatous patients a recognition task facial expressions. Nineteen patients, 16 age-matched and 14 young controls saw centrally presented photographs faces. Participants categorized expressions as happy, angry or neutral. Two versions were tested: filtered faces either low (LSF) high (HSF) frequency content hybrid constructed from face with LSF superimposed on HSF differing Compared to significant deficit was observed both for patients. Controls, but not biased towards component Different are normally used recognize different Impaired processing bandwidth due an ocular pathology can therefore lead misinterpretation emotions, impact social interactions.