Facial paralysis that affects eyelid muscles can lead to ectropion.

影响肌肉面瘫会导致外翻。

Ectropion can cause your eyes to feel dry, gritty and sandy.

外翻会使你睛感到干，有砾和沙子。

Rarely, ectropion is present at birth, (congenital) .

先天性外翻比较罕见。

Previous eyelid surgery can cause ectropion, particularly if a considerable amount of skin was removed from the eyelid at the time of surgery.

以前手术可能会导致外翻，特别是手术时从切除了较多皮肤情况下。

Signs and Symptoms include: If you have ectropion, your lower lid pulls away from your eye and tears don't drain properly into the puncta.

如果你患有外翻，缘会离开球，泪水不能正确地排入窝。