Medical Q&As

Eye angiogram - explain?

My mother has bleeding behind the eye and has to have an angiogram on her eye. Could you explain what this involves please? She suffers from high blood pressure, which the doctor thinks is the cause of the bleeding.

An angiogram is a special imaging technique that allows the examining doctor to obtain pictures of the blood vessels on the retina, which is the light sensitive membrane at the back of the eye. A special dye is injected into a vein in the arm and photographed as it passes through the arteries and veins of the retina. A digital camera is focussed on the back of the eye through the pupil but it is important to realise that this is a non-invasive technique and does not involve inserting anything into the eye. The photographer takes a series of photographs to document any abnormalities or leakage from the retinal blood vessels. After the test the examining doctor will make a careful interpretation of the angiogram, and the precise location of abnormalities can be documented for future reference. I agree with your motherís doctor that high blood pressure is the most likely cause of the bleeding.