Đang tải... (xem toàn văn)
Entropion is an eyelid malposition manifest by an inward rotation of the eyelid margin. The eyelashes on the eyelid margin abrade the cornea, producing pain and ocular irritation. Entropion has classically been divided into subtypes of congenital, spastic, involutional and cicatricial. Involutional entropion is the most common type of entropion. The incidence of involutional entropion increases with increasing age. The inward rotation of the eyelid margin produces ocular pain, irritation and tearing. Initially, patients are able to correct this eyelid malposition by simply distracting the eyelid away from the globe. With time, the involutional entropion becomes more prolonged and troublesome. With increasing ocular pain, patients will seek medical care for the correction of the entropion. There are four underlying ca