Term Name:	palpebral fissure
Synonyms:	rima palpebrarum
Definition:	Orifice separating upper and lower eyelids. In the human adult this measures about 10mm vertically and 30 mm horizontally. It can be reduced in size in fetal alcohol syndrome. In Trisomy 9 the palpebral fissures can be upslanting. [WP,modified].
Ontology:	Uberon Ontology [UBERON:0001819]