A retina scan is a medical imaging technique that captures detailed images of the retina, the light-sensitive layer at the back of the eye. This scan helps in diagnosing various eye conditions, such as diabetic retinopathy and glaucoma, by allowing doctors to examine the blood vessels and tissues in the retina. During a retina scan, a special camera is used to take high-resolution images. The process is quick and non-invasive, often requiring only a few minutes. Results can help in monitoring eye health and determining the need for further treatment or intervention.