The blood–retinal barrier, or the BRB, is part of the blood–ocular barrier that consists of cells that are joined tightly together to prevent certain substances from entering the tissue of the retina. It consists of non-fenestrated capillaries of the retinal circulation and tight-junctions between retinal epithelial cells preventing passage of large molecules from choriocapillaris into the retina.
Read more about Blood–retinal Barrier: Components, Diabetic Retinopathy, Animal Studies
Famous quotes containing the word barrier:
“To say that a thing has never yet been done among men is to erect a barrier stronger than reason, stronger than discussion.”
—Thomas Brackett Reed (1839–1902)