Disease or Syndrome
ectropion
Subclass of:
Eyelid Diseases
Etymology:
Greek ek (ec-) = out + trope = a turning
Hence a name for the outward turning of the lid margin.
Definitions related to ectropion:
  • An outward turning (eversion) or rotation of the eyelid margin.
    Human Phenotype Ontology (HPO)
    The Human Phenotype Ontology Project, 2025
  • The turning outward (eversion) of the edge of the eyelid, resulting in the exposure of the palpebral conjunctiva. (Dorland, 27th ed)
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • When an eyelid, usually the lower one, flips outward so that the inner surface is exposed.
    Harvard Dictionary of Health Terms
    Harvard Medical Publishing, 2011
  • Ectropion is an abnormal eversion (outward turning) of the lid margin away from the globe. Without normal lid globe apposition, corneal exposure, tearing, keratinization of the palpebral conjunctiva, and visual loss may result.
    Medscape
    WebMD, 2025
  • Ectropion (ek-TROH-pee-on) is a condition in which your eyelid turns outward. This leaves the inner eyelid surface exposed and prone to irritation.
    Mayo Clinic
    Mayo Foundation for Medical Education and Research, 2025
  • Ectropion, outward turning of the border (or margin) of the eyelid (usually the lower eyelids). The condition most often occurs in elderly persons as a result of age-related relaxation of the eyelid's supporting structures. Other causes include congenital malformation of the lid, paralysis of the...
    Encyclopedia Britannica
    Encyclopedia Britannica, Inc., 2025
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