Where does type III RAPs CNV often extend?

Type III retinal angiomatous proliferation (RAP) characterized by choroidal neovascularization (CNV) typically extends posteriorly towards the retinal pigment epithelium (RPE) and choroid. This pattern is due to the nature of the pathology, where new blood vessels form beneath the retina and can disrupt the RPE, leading to possible complications such as bleeding and fluid leakage. The posterior extension is significant because it indicates the location of the CNV relative to the retinal layers and highlights the importance of understanding how CNV behaves in diseases such as age-related macular degeneration. This knowledge can inform treatment options and potential surgical interventions aimed at preserving vision.