Choroidal neovascularization (CNV) is a condition where new, abnormal blood vessels grow in the choroid, a layer of tissue beneath the retina. This growth can lead to leakage of fluid and blood, causing damage to the retina and potentially resulting in vision loss. CNV is often associated with diseases like age-related macular degeneration (AMD) and myopia. The presence of these new blood vessels can create a distorted or blurred vision, making it difficult for individuals to see clearly. Early detection and treatment are crucial to manage CNV effectively, often involving therapies such as anti-VEGF injections to reduce the growth of these vessels and preserve vision.