If trichiasis persists in rubbing against the cornea, it will cause damage to the cornea. Long-term abrasion can lead to corneal neovascularization, damage the corneal epithelium, and leave opacity, sometimes forming speckled opacity or even leukoplakia, severely affecting vision. Once trichiasis occurs, active treatment is necessary. If there are only a few lashes involved, electrolysis of the eyelashes can be done; if there are many, surgery is essential. The surgery for trichiasis is generally successful, fully capable of correcting the condition, protecting the cornea, preserving vision, and alleviating the symptoms of the patient.