[Joseph R. Hasner, Prague ophthalmologist, 1819–1892]Lacrimal plica.
Hasner,Joseph Ritter von, Czech ophthalmologist, 1819-1892.
Hasner fold - a fold of mucous membrane guarding the lower opening of the nasolacrimal duct. Synonym(s): Hasner valve; lacrimal fold
Hasner valve - Synonym(s): Hasner fold