lacrimal sac: either of the two dilated ends of the lacrimal ducts at the nasal ends of the eyes that fill with tears secreted by the lacrimal glands
vesicle: a small anatomically normal sac or bladderlike structure (especially one containing fluid)
grape hyacinth: any of various early flowering spring hyacinths native to Eurasia having dense spikes of rounded blue flowers resembling bunches of small grapes