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Trichiasis

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Trichiasis refers to abnormally positioned eyelashes that grow back toward the eye, touching the cornea or conjunctiva.

This can be caused by infection, inflammation, autoimmune conditions, congenital defects, eyelid agenesis and trauma such as burns or eyelid injury.

It is the leading cause of infectious blindness in the world.

Posterior misdirection of normal lashes most frequently affects lower lid.

Can be caused by repeated cases of trachoma infection.

Treatment involves removal or destruction of the affected eyelashes with electrology, specialized laser, or surgery.

Removal of the affected eyelashes with forceps frequently resolves the symptoms, although it often recurs in a few weeks when the eyelashes regrow.

Severe cases may cause scarring of the cornea and lead to vision loss if untreated.

Mild cases may not require treatment.

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