This condition is exactly the opposite of the one previously described; the affected lid is turned outwards instead of inwards, exposing the conjunctival membrane with which it is lined. Like the other deformity, this usually results from burns or from inflammation of the conjunctiva, and almost invariably affects the lower lid. To correct this, a caustic pencil should be drawn across the mucous membrane so as to occasion a slough, when the lid will be drawn up or down in the process of cicatrization.