Note: Do not rely on this information. It is very old.
Entropion
Entropion, or Entropium, a turning-in of the edge of the eyelid, clue to muscular spasm, or to cicatricial contraction supervening upon a wound of eyelid. In entropion the eyelashes are turned inward, and, rubbing against the cornea, produce intense irritation. The condition if neglected may lead to considerable loss of vision.