The invention encompasses isolation, culture and characterization of goblet cells in vitro from mammalian conjuctiva. Goblet cells can be cultured from conjunctiva of such mammals as, e.g., humans, rats, mice, rabbits and the like. In another aspect of the invention, the culture of goblet cells has a concentration of pure goblet cells of 10% or greater. In a further embodiment, the invention comprises an immortalized goblet cell line.