We described a patient with bilateral iris metastases resulted from prostatic cancer. Slit lamp and ultrasonography examination of the both eye demonstrated tumor of the iris, as an amelanotic vascular mass located on the superior temporal quadrant. On open biopsy revealed undifferentiated tissue that stained strongly positive for prostate carcinoma, confirming the diagnosis of metastasis prostate adenocarcinoma. Early diagnostic procedures are essential for the causal therapy of prostate carcinoma as the primary neoplasm.