In spite of certain investigations published during the last decades in both Europe and America, the question of the existence of keratomalacia in adults has thus far been answered in the negative in the text books. This is to a certain extent justified by the fact that in former years many diseases which bore no relation to each other, such as neuroparalytic keratitis, senile marginal ulcers, senile marantic ulcers (Schoeler1) and keratomalacia, were all considered one disease. It is also due to the fact that the general high standard of living and the relatively well nourished condition of the population of Western and Central Europe and America have caused this disease to disappear there, or to appear in such isolated cases that, in view of the prevailing opinion that keratomalacia is exclusively a disease of childhood, it has been impossible to make the diagnosis of keratomalacia