Metastatic choroidal tumors are the most common type of intraocular malignancy and are often linked to advanced-stage systemic cancers. Lung cancer, a leading cause of cancer-related mortality worldwide, occasionally presents with choroidal metastasis as the initial sign of systemic disease. This case series, which presents two distinct presentations of choroidal metastases as the first clinical manifestation of advanced lung adenocarcinoma, contributes to the understanding of the atypical presentations of lung cancer and the importance of considering ocular symptoms in the diagnosis of systemic diseases.