The various types of MRI scans that are used â most commonly the T1-weighted scan and the T2-weighted scan â measure this relaxation time in different ways. Computer programs translate these data into cross-sectional pictures of the water in human tissue.
What is Hypertensive Retinopathy? Hypertensive retinopathy is damage to the retina from high blood pressure. The high blood pressure changes the microvasculature of the layer of tissue at the back part of the eye. Severe damage to the eye is likely if the person has been living with high blood pressure for a long period of time. Common symptoms.
In proliferative retinopathy, new, structurally unstable blood vessels grow on the surface of the retina. These unstable blood vessels cause frequent minor bleeding. The bleeding causes local irritation and scarring.Proliferative retinopathy can cause retinal detachment. This is a separation of the layers of the retina. It is one of the most serious consequences of proliferative retinopathy.The vitreous is the clear gel between the lens and the retina.