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  1. Copilot Answer
    SynonymsEpicanthal fold, epicanthus, eye fold, Mongoloid fold, palpebronasal fold
    Latinplica palpebronasalis
    TA2211
    Etymology

    Epicanthus means 'above the canthus', with epi-canthus being the Latinized form of the Ancient Greek ἐπί κανθός: 'corner of the eye'. See more

    Classification

    Variation in the shape of the epicanthic fold has led to four types being recognised:
    • Epicanthus supraciliaris runs from the brow, curving downwards towards the lachrymal sac.
    • Epicanthus palpebralis begins abo… See more

    Ethnogeographic distribution

    The highest frequency of occurrence of epicanthic folds is found in specific populations or ethnicities: East Asians, Southeast Asians, Central Asians, North Asians, Polynesians, Micronesians, Indigenous … See more

    Possible evolutionary function

    The epicanthic fold is often associated with greater levels of fat deposition around the eyeball. The adipose tissue is thought to provide greater insulation for the eye and sinuses from the effects of cold, especially from freezi… See more