2. electrocautery: destroy the hair roots of eyelashes by electrocautery, so that trichiasis no longer grows. However, electrocautery may not destroy the hair roots accurately, but may damage the adjacent normal eyelashes and cause another trichiasis.
3. Freezing method: Using the low temperature of MINUS 20 degrees to freeze and destroy the hair follicles of eyelashes, the effect is good. But it may lead to eyelid pigment shedding and uneven eyelid color.
4. Laser method: Using laser to destroy the hair roots of eyelashes has a good effect. But it may take two or three times to cut the roots, and the cost is also high.
5. Operation: If there is only a small amount of trichiasis locally, trichiasis and eyelid can be removed together. If the range of trichiasis is very large, even if the whole row of eyelashes are inserted backwards, surgery is needed to turn the eyelid margin outwards, so as to achieve the effect once and for all.
Personally, I think it is better to use iron eyelash curlers than battery ones, so this method is not recommended to solve the problem of trichiasis.