What is a retinal tag?

A retinal tag is a specialized mark or identifier used in the study of visual perception and eye movement, often in research involving eye-tracking technology. It typically refers to a specific stimulus or pattern placed on or near the retina to monitor how the eye responds or tracks objects in the visual field. Retinal tags can help researchers understand visual processing and the dynamics of attention. Additionally, they may be used in various clinical applications to assess eye health or diagnose conditions.