What is the name for small yellowish lesions located between the retinal pigment epithelium and Bruch's membrane?

The small yellowish lesions located between the retinal pigment epithelium and Bruch's membrane are referred to as drusen. Drusen are primarily associated with age-related macular degeneration (AMD) and serve as an important indicator of the condition. They consist of extracellular deposits that accumulate under the retina, and their presence can help in diagnosing and monitoring retinal diseases.

In contrast, exudates pertain to fluid that has escaped from blood vessels, typically present in conditions like diabetic retinopathy, while cysts refer to fluid-filled sacs that can form in various tissues, including the retina but are not specifically related to drusen. Stains are often used in the context of visual changes or marks on the retina but do not have the specific anatomical definition associated with drusen. Thus, the correct identification of drusen is crucial for understanding retinal health and the potential implications for vision-related issues.