Abt NB, et al. - Using Surveillance, Epidemiology, and End Results database from 1973 to 2012, researchers determined the epidemiology and survival of primary conjunctival malignant neoplasms. Of the 1661 cases, the most frequent neoplasms are 54.8% squamous cell carcinoma (SCC) and 38.8% melanoma. Only age is a survival predictor for SCC. Age, male sex, T4 tumor and N1 status are all predictors of survival for melanoma. For both conjunctival SCC and melanoma, age at diagnosis is a determinant of survival. In terms of overall survival, there was no significant difference between SCC and melanoma.