Entropion

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Classification according to ICD-10
H02.0 H02.0 Entropion and trichiasis of the eyelid
Q10.2 Congenital entropion
ICD-10 online (WHO version 2019)

The entropion (also referred Rolllid) is a deformity of the eyelid , usually the bottom. The lid is turned inwards so that the eyelashes drag on the cornea, which is called trichiasis .

Entropion in a bull mastiff

causes

  • In the ring-shaped sphincter muscle of the eyelid ( Musculus orbicularis oculi ) the tensions of the fibers are different. The fibers of the orbicularis oculi muscle near the edge of the eyelid are more tense or the fibers of the eyelid-opener muscle are slack. This occurs mainly in people of older age and is then called entropion senile.
  • With a persistent "eyelid cramp", a so-called blepharospasm , the fibers near the edge of the eyelid are drawn together. It is spoken of an entropium spasticum.
  • Shrunken scars on the conjunctiva, for example in trachoma , cause the eyelid to turn inward. It is called a scar entropium or an entropium cicatriceum.

Symptoms

Rubbing the eyelashes on the cornea and conjunctiva creates the feeling that there is a foreign body in the eye, which is also the case in the form of the eyelashes. If the irritation becomes chronic, the result is reddening and constant tearing. Since the teardrop is no longer on the eye due to the entropion, the tears can no longer flow into the nose and this causes the eyes to tear. In addition, the whole thing is very painful, because the cornea is the most sensitive point in the eye. The cornea is at risk from inflammation and scarring. A decrease in visual acuity can result.

therapy

In mild cases, an adhesive plaster can be stuck on the lower lid so that the edge of the lid is under tension and turns outwards again. In more severe cases, skin and muscle tissue must be removed from the lid with an operation.

forecast

After operations, there is often a relapse, which makes another operation necessary. In mild cases, the prognosis is good if treated in good time. If entropion is innate, it often disappears by itself.

literature