Field of Vision
Copyright ©The Author(s) 2025.
World J Exp Med. Sep 20, 2025; 15(3): 104431
Published online Sep 20, 2025. doi: 10.5493/wjem.v15.i3.104431
Figure 1
Figure 1 Blood-ocular barrier maintains the immune-privileged status of the eye by restricting the entry of blood-borne substances. It consists of two main components: The inner blood-retinal barrier formed by tight junctions between retinal endothelial cells and supported by Müller glial cells, which regulate fluid and ion balance and the outer blood-retinal barrier composed of tight junctions between retinal pigment epithelial cells adjacent to the choroid, controlling molecular exchange between the retina and the systemic circulation.