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