Entropion is a condition in which the lid margin flips inward causing the eyelashes and skin to come in contact with the cornea, causing irritation. The main causes are as follows: 1. Congenital lid entropion: mainly seen in infants and children with lower lid entropion, mostly due to pulling of the medial canthus, physical obesity and lack of fullness of the nasal root development. In some cases, this is due to overdevelopment of the orbicularis muscle at the lid margin or underdevelopment of the lid plate; 2. Spastic lid entropion: This occurs mainly in the lower lid due to spastic contraction of the orbicularis muscle, mostly in the elderly. This is due to skin laxity in the elderly, resulting in a loss of contraction of the orbicularis oculi fibers, and a decrease in orbital fat, resulting in a lack of adequate support behind the eyelid. In addition, stimulation by conjunctivitis and keratitis, prolonged tight bandaging of the eye, small or no eyeball can trigger the disease. 3. Scarring lid entropion: caused by scarring contraction and bending of the lid conjunctiva and lid plate, commonly occurring during the trachoma scarring phase, but also after conjunctival burns, conjunctival aspergillosis and diphtheritic conjunctivitis.