Entropion is an eye condition characterized by the turning in of the edges of eyelid-usually the lower eyelid so that the eyelashes may actually rub against the surface of the eye. Entropion can be a congenital eye condition or an acquired eye condition. In babies, it rarely causes problems because the lashes are very soft and do not easily damage the cornea. In older people, the entropion is usually caused by a spasm and weakening of the muscles surrounding the lower part of the eye, causing the eyelid to turn inward. Patients who have entropion often experience symptoms of excessive tearing, eye irritation, redness, discomfort and might even experience a decrease in vision if their cornea is damaged.