Despite the rarity of Krukenberg's spindle in ophthalmologic practice, it has been possible to accumulate a series of 202 cases for review in this study. Ninety-five of these, not previously reported, were collected through a questionnaire addressed to members of the American Board of Ophthalmology in the United States and Canada, and a search of the literature has yielded 107 cases recorded in the forty years since Krukenberg's original description, in 1899. Although approximately three hundred and fifty physicians and institutions answered the questionnaire, only sixty were able to report cases of Krukenberg's spindle. Thirty-eight described 1 case each ; fifteen, 2 cases; four 3 cases. Rosenbaum, of Montreal, contributed 4 cases ; Metz, of Cleveland, 5 cases, and Montalvan, of New York city, 6 cases. The details on the 95 collected cases, including one of ours, are shown in table 1. In addition to the contributors who furnished sufficient data on