Dr. Patricia Chevez-Barrios discusses a new trend in ocular oncology, prognostic biopsies. No longer are physicians performing tumor biopsies for diagnosis alone. Tissue biopsy can predict the risk of metastatic spread of a primary tumor using either gene expression profiling or chromosomal analysis. Dr. Chevez-Barrios describes the differences between these two tests, how the biopsies are performed, and what the physician and patient can expect to learn from them.

Financial Disclosures: Dr. Chevez-Barrios and Dr. Gombos have no financial interests to disclose.