Fuchs' syndrome of heterochromic cyclitis is a commoner ocular disorder than has generally been recognized in this country. Most of the reports on the disease are to be found in the European literature.* Not only have American observers † failed largely to identify the syndrome, but in extensive surveys ‡ of patients with uveitis they have omitted it from consideration in their attempts at differential diagnosis. At the University of California Hospital,§ however, better than 2% of some 750 cases of uveitis surveyed between 1949 and 1955 were clear-cut examples of this interesting syndrome. Most of them had been referred to the clinic for diagnosis. The purpose of this paper is to point out the frequency with which Fuchs' syndrome occurs in the western part of the United States and to suggest the importance of recognizing it. If a case of uveitis can be identified as Fuchs' syndrome at the