Ingrown eyelashes are the backward growth of eyelashes and can be caused by any of the various causes of lid entropion, such as trachoma, blepharitis, blepharitis, lid trauma or lid burn. The number of ingrown eyelashes varies from 1-2 lashes to all lashes. There is often eye pain, tearing and a foreign body sensation. The lashes rub against the eye for a long time, resulting in conjunctival congestion, superficial corneal pitting, clouding, vascularization, and ulceration. If there are only 1-2 ingrown eyelashes, they can be removed with eyelash plucking forceps and re-plucked when they re-grow. A more thorough treatment should be electrolysis, which destroys the ingrown eyelash follicles and reduces the chance of regrowth. If there is a lot of ingrown eyelashes, they should be surgically corrected, similar to double eyelids, so that the eyelashes can be turned inside out. In the case of children’s ingrown eyelashes, they have the potential to heal themselves as they grow and develop. Children have tighter skin, so some patients can be relieved by peeling their eyelids outward. Treatment of adult ingrown eyelashes depends on the situation. If only a few lashes are ingrown, electrolysis can be used to destroy the follicles so that they no longer grow; if half or the entire row is ingrown, surgery is needed in time to avoid scratching the cornea. Some of the onset of the emmetropia is congenital, but it is more often seen in the elderly. This is because older people have looser skin and their eyelids are unable to turn out, resulting in spastic lid entropion which leads to the onset of impingement. As for its treatment, there are different measures depending on the age and condition. In the case of children, the condition may heal itself with growth and development; in the case of children, the skin is tighter, so some patients can be relieved by peeling the eyelids outward. The treatment of adult ingrown eyelashes depends on the situation. If only a few eyelashes are ingrown, electrolysis can be used to destroy the follicles so that they do not grow again; if half or the whole row is ingrown, surgery is needed in time to prevent the cornea from being scratched. As for the surgical method, it varies depending on the upper and lower eyelids: lower eyelid ingrown eyelashes can be corrected muscularly, while upper eyelid ingrown eyelash surgery is similar to doing a double eyelid to turn out the eyelashes that are turned inward.