What is entropion?

Entropion is a medical condition in which {the} eyelid (usually {the} lower lid) folds inward. It is very uncomfortable, as {the} eyelashes constantly rub against {the} cornea.

The upper or lower eyelid can be involved, and one or both eyes may possibly be affected. When entropion occurs in both eyes, this is known as "bilateral entropion." Trachoma infection may possibly cause scarring of {the} inner eyelid, which may possibly cause entropion. In human cases, this condition is most common to people over 60 years of age.

Four basic anatomic defects which may possibly lead to entropion:

  1. Horizontal lid laxity
  2. disinsertion or attenuation of retractors
  3. preseptal orbicularis overiding {the} pretarsal orbicularis muscle
  4. enophthalmos


Patients also find relief by pulling {the} lower eyelid away from {the} eye


Forms of Entropion

  • Congenital
    • rare
    • differentiate from epiblepharon
    • treat by excising skin and orbicularis below eyelid margin
  • Acute Spastic
    • due to ocular inflammation and irritation
    • Treat underlying disease or quickert suture
  • Involutional entropion
    • Etiologies  
      • laxity or defect of {the} lower eyelid retractors (involutional=senile), due to lid retratctor dehiscence of {the} lower eyelid retractors (analogue of mueller's muscle) or of capsulopapebral fascia (analogue of levator)
      • horizontal eyelid laxity
      • preseptal orbicularis override
      • enophthalmos
    • Treatment
      • Thermal cautery
      • quickert suture
      • re-attachment of lower eyelid retractors
      • full thickness horizontal eyelid lid splitting and marginal rotation
      • orbicularis muscle tightening procedures
      • horizontal lid shorteing
      • tarsal strip


EtiologyCicatricial entropions

    • trauma
    • inflammation
    • pemphigus
    • pemphigoid
    • stevens-johnson syndrome
    • trachoma
  • Treatment
    • contact lenses
    • epilation
    • lubrication
    • mucous membrane graft
    • scleral grafts
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