SYNOPSIS Twenty-six cases of lymphocytic tumour of the conjunctiva, which were originally classified as benign lymphoma and lymphosarcoma, were followed up for more than five years, They were then reclassified into non-disseminating and disseminating groups van Duyse (1905) who was the first worker to treat the lesions by irradiation, Baslini (1907), Cosmettatos (1910), and Coats Received for publication 12 November 1970. (1915) who described five cases affecting young people. The tumours recorded by Coats were slowly growing and were situated at the inner portion of the conjunctiva, three affecting the plica, one the caruncle, and the fifth affecting the limbus. The lesions were bilateral and symmetrical in one case. Bedell (1922) described the first case in America, and other cases have been described by Speciale-