blood-retinal barrier

These damages change the formation of the blood-retinal barrier and also make the retinal blood vessels become more permeable.

The retinal pigment epithelium maintains the outer blood-retinal barrier.

Animal models have shown that the blood-retinal barrier becomes more permeable to substances in hypertensive animals (those with high blood pressure).

Diabetic retinopathy, eye damage that frequently occurs as a result of diabetes, is related to the breakdown of the blood-retinal barrier.

Blood-retinal barrier: non-fenestrated capillaries of the retinal circulation and tight-junctions between retinal epithelial cells preventing passage of large molecules from choriocapillaris into the retina.

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.

By analogy to Coats disease, the exudative retinopathy is thought to result from breakdown of the blood-retinal barrier at the level of the vascular endothelial cell, resulting in leakage of blood plasma and lipid.

Coats' disease is thought to result from breakdown of the blood-retinal barrier in the endothelial cell, resulting in leakage of blood products containing cholesterol crystals and lipid-laden macrophages into the retina and subretinal space.

The BBB is distinct from the quite similar blood-cerebrospinal-fluid barrier, which is a function of the choroidal cells of the choroid plexus, and from the blood-retinal barrier, which can be considered a part of the whole realm of such barriers.

PIOL and PCNSL remain enigmas because both structures are immunologically privileged sites (the brain sits behind the blood-brain barrier and the retina sits behind the blood-retinal barrier) and so do not normally have immune cells trafficking through these structures.