If you have trichiasis, it is generally not advisable to wear orthokeratology lenses until the trichiasis is treated. The treatment for trichiasis is straightforward. If there are only a few inverted eyelashes, electrolysis can be performed. If there are many, surgical treatment can be carried out. This is because trichiasis can easily lead to various pathological changes in the conjunctiva and cornea, such as conjunctivitis and keratitis. Keratitis can lead to the formation of corneal nebula, plaques, leukoma, or neovascularization. Therefore, it is crucial to treat the condition actively. Once the condition is stable and completely healed, then orthokeratology lenses can be worn. If there are only a few inverted eyelashes, electrolysis can be performed, and if there are many, surgical treatment can be considered, which is relatively simple.