What is the term for the condition where the eyelid turns outward, leaving the inner eyelid surface prone to irritation?

The condition where the eyelid turns outward is known as ectropion. This condition causes the inner eyelid surface to be exposed and can lead to irritation and dryness, as the inner eyelid is not designed to be open to the environment. Ectropion often results in discomfort and may also increase the likelihood of infections or inflammation because the protective function of the eyelid is compromised.

In contrast, entropion refers to a situation where the eyelid folds inward, leading to the lashes rubbing against the eye, which can cause significant irritation. Blepharitis is an inflammation of the eyelid margins and does not involve the eyelid positioning itself. Ptosis is characterized by the drooping of the upper eyelid, which affects vision but does not involve the eyelid turning inward or outward.