Definition of canthus in English:



  • The outer or inner corner of the eye, where the upper and lower lids meet.

    • ‘Features of a severe case include palpebral redness and swelling, obvious congestion of bulbar conjunctiva possibly accompanied with petechial hemorrhages and increase of mucus secretions at the inner canthus.’
    • ‘A 25-year-old male presented himself to our outpatient department with increasing non-painful swelling below the medial canthus of the right eye since six months.’
    • ‘Additional electrodes were placed at the outer canthus of each eye to obtain the subject's EOG, which was used to facilitate artifact scoring.’
    • ‘Systemic effects from eye drops can be reduced by occlusion of the punctum (finger pressed on the caruncle, which is felt as a lump at the inner canthus of the eye) or shutting the eyes for several minutes after putting in the drops.’
    • ‘The eye movements (electro-oculograms [EOGs]) were monitored by electrodes placed superorbitally and over the outer canthus of the left eye.’


Mid 17th century: from Latin, from Greek kanthos.