What causes trichiasis?

Trichiasis is an abnormal condition in which eyelashes grow backward, so that they touch the eyeball. There are many causes of trichiasis, such as congenital factors, infection, trauma, eyelid diseases, aging degenerative changes, etc.

1. Congenital factors

Congenital eyelid entropion, common in Asians, mostly caused by epicanthus.

2. Infection

trachoma, blepharitis and other diseases can lead to eyelid scar contraction, so that eyelashes backward to the eyeball.

3. Traumatic

eyelid trauma or burns, the formation of scars, scar contracture can lead to eyelashes backward to the eyeball.

4. Eyelid diseases such

as meibomian cyst, sinusitis and other diseases can lead to eyelid entropion, thus forming trichiasis.

5. Aging degenerative changes The

skin of the elderly is relaxed, orbicularis muscle relaxation, can lead to eyelid entropion, forming trichiasis.