[Attempts at treating pigmented iris tumors with argon laser]

4 cases of flat pigmentary iris tumours, spreading out, in three cases, into anterior chamber angle are presented. The lack of patient's consent to surgery made histopathological diagnosis impossible and limited the choice of method of treatment. The several stage photocoagulation with argon laser was performed. The treatment resulted in cicatrization with atrophy of pathological tissue and the structure of iris itself. During follow-up (2-5 years) the growth of tumors was regressed and all patients were in good condition.