Disease or Syndrome
entropion Audio
en·tro·pi·on
Subclass of:
Eyelid Diseases
Etymology:
Greek en = in + trope = a turning
Hence an inward rolling of the margin of the eyelids.
Definitions related to entropion:
  • An abnormal inversion (turning inward) of the eyelid (usually the lower) towards the globe. Entropion is usually acquired as a result of involutional or cicatricial processes but may occasionally be congenital.
    Human Phenotype Ontology (HPO)
    The Human Phenotype Ontology Project, 2025
  • An eyelid, usually the lower lid, which folds inward so that the eyelashes rub against and irritate the surface of the eye.
    Harvard Dictionary of Health Terms
    Harvard Medical Publishing, 2011
  • The turning inward (inversion) of the edge of the eyelid, with the tarsal cartilage turned inward toward the eyeball. (Dorland, 27th ed)
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • Entropion is a malposition resulting in inversion of the eyelid margin. The morbidity of the condition is a result of ocular surface irritation and damage.
    Medscape
    WebMD, 2025
  • Entropion (en-TROH-pee-on) is a condition in which your eyelid turns inward so that your eyelashes and skin rub against the eye surface. This causes irritation and discomfort.
    Mayo Clinic
    Mayo Foundation for Medical Education and Research, 2025
  • Entropion, inward turning of the border (or margin) of the eyelid (usually the lower eyelids), occurring most often in elderly persons. It is commonly caused by age-related alterations in the fibrous and muscular support of the eyelids. The turning in of the lid margin allows the eyelashes to rub...
    Encyclopedia Britannica
    Encyclopedia Britannica, Inc., 2025
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.