Xin Yee Chong

1 Introduction Ocular metastases are rare, pose a diagnostic challenge, and can be the first sign of an underlying tumour. The incidence of ocular metastasis has been reported to be as high as 8%–10%. Among metastatic eye lesions, the majority originate from breast cancer (47%) and lung cancer (21%). The uvea is the most common site of metastasis due to its rich vascular supply; in contrast, iris lesions are rare but easily visualized.