When the lower eyelid turns out, it is called ectropion. In these cases the conjunctiva exposed to the external environment becomes irritated, causing tearing and burning. It is very rare to observe the birth related Blepharophimosis syndrome, the euryblepharon or ichthyosis. Most cases are acquired and related to the weakening of the eyelid and skin structures in seniors Treatment is surgical and there are several surgical techniques to resolve this condition, according to its intensity.
Ectropion can begin from a scar and is seen in people who have suffered sunburn, chemical or badly sutured wounds on the eyelids, these conditions cause skin traction in the lower eyelid that turns out. It can cause eye exposure and dry eye.
Another variety is the paralytic ectropion, which occurs as a result of paralysis of the facial nerve. It can be seen at birth, or acquired (Bell's Palsy), or secondary tumors or wounds. Lid closure is made impossible by the paralysis and the eye is unprotected resulting in severe corneal damage. The treatment is surgical.