A three months old Spitz pup was presented with history of incomplete opening of eyelids due to a fibrous band connecting the eyelids. The condition was diagnosed as Ankyloblepharon filiforme adnatum and managed surgically.
Keywords: Ankyloblepharon filiforme adnatum; congenital abnormality; eyelid
The eyelid opening is almost completely closed at birth in dogs and cats. There is only a pin point opening at medial canthus. Lids open during the first 10-15 days. Delayed or incomplete opening is occasionally seen in dogs (Basher, 2003). Ankyloblepharon filiforme adnatum (AFA) is a rare benign congenital abnormality of eyelids characterized by single or multiple bands of fibrous tissue joining the upper and lower eyelids either unilaterally or bilaterally. These connecting strands were found to consist of vascularized central core surrounded by stratified squamous epithelium (Judge et al.,1929). It is differentiated from pathologic Ankyloblepharon which is reported to occur in pups which is characterized by failure of the eyelids to separate even after 10-14 days and in which there is complete fusion of eyelids (Basher, 2003). It can occur as an isolated...
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