Orbital Margin, Hypoplasia Of

Urrets-Zavalia (1955) observed 2 families with a syndrome consisting of agenesis of the orbital margin, hypoplasia of the palpebral skin and tarsal plates, and variable defects of the lacrimal passages including ectopia and elongation of the lower punctum, shortening or absence of the inferior canaliculi, supernumerary canaliculi, or atresia of the nasolacrimal duct. In some a small coloboma of the inner part of the lower lids and congenital anomalies of the extraocular muscles were present.