Ankyloblepharon filiforme adnatum affecting identical twins.

Abstract

In this rare congenital abnormality, first described by Hasner (I88i), single or multiple fine strands of tissue join together parts of the upper and lower eyelid margins. These bands arise from the 'grey line', posterior to the cilia but in front of the orifices of the meibomian glands; this is in contradistinction to other forms of developmental ankyloblepharon, in which sheets of tissue that are continuous with the eyelid skin form broad adhesions between the lids.