DISTICHIASIS
Distichiasis is extra row of eye lashes from meibomian glands
TYPES
either congenital or acquired.
acquired distichiasis is metaplasia of meibomian glands in hair follicle.
PATHOGENESIS
Acquired distichiasis is caused by metaplasia of meibomian glands caused by chemical burns, stephen johnson syndrome, trachoma and ocular cicatricial pemphigoid. in contrast to congenital distichiasis, these are non pigmented
TREATMENT:
Separation of two lamella of lid and cryotherapy to the base of eye lashes