Retinal imaging is a medical technique used to capture detailed images of the retina, the light-sensitive layer at the back of the eye. This process helps eye care professionals examine the health of the retina and detect various conditions, such as diabetic retinopathy, glaucoma, and macular degeneration. The imaging can be performed using different methods, including fundus photography and optical coherence tomography (OCT). These technologies provide high-resolution images that allow for accurate diagnosis and monitoring of eye diseases, ultimately aiding in preserving vision and eye health.