Entropion is the turning in of the edges of the eyelid (usually the lower eyelid) so that the lashes rub against the eye surface.
Causes, incidence, and risk factors
Entropion can be present at birth (congenital).
In babies, it rarely causes problems because the lashes are very soft and do not easily damage the cornea. In older people, the condition is usually caused by a spasm or weakening of the muscles surrounding the lower part of the eye. This causes the lid to turn inward.
Although rare in North America and Europe,
Risk factors for entropion are:
- Infection with trachoma