<prompt> Koeppe nodules are present onCorneaConjunctivaIrisRetina  <response>: Iris nodulesThere are many types of nodules that develop on iris in granulomatous uveitis:-Koeppe nodule: - Seen at pupillary margin.Busaccas nodule: - Seen on the peripheral part of the anterior surface of iris.Tubercular nodules: - Scattered throughout the iris and ciliary body, mostly in the stroma. They are more common at pupillary margin.Syphilitic nodules:-At pupillary margin.Sarcoid nodules:-At pupillary margin or in the stroma of the iris. 