Ophthalmic ultrasonography is essential for documentation, measurement, and differentiation of intraocular tumors. It is a safe, noninvasive diagnostic technique that provides instant images for interpretation. Standardized echography refers to the combined use of contact B-scan and standardized A-scan. It provides a reliable method to evaluate ocular lesions based on the topographic, quantitative, and kinetic properties of the echo intensities and patterns. Topographic, quantitative, and kinetic features of many intraocular tumors are well established. B-scan and UBM examination yield topographic information, including shape, size, and location, as well as vascularity, a kinetic feature. Diagnostic A-scan examination yields quantitative information, including structure and reflectivity and, in some instances, vascularity. Utilizing these combined techniques (standardized echography), malignant intraocular tumors can be differentiated from benign lesions whose appearance on visual examination may be similar.