Fluorescein ophthalmology angiography is an invasive method for studying the ocular vessels, which is based on their visualization by introducing fluorescent into the arterial blood and short-term photography. It provides a detailed picture of the arterial system of the eye and allows the identification of vascular abnormalities, as well as various pathological processes such as tumor metastases and vascular occlusion. Angiography is performed using a special machine called an angiograph, which captures images in real time.
Before angiography of the eye, the patient receives intravenous fluorescence in an amount that provides contrast to the arterioles, orbit and retina. Immediately after administering the drug and fixing the pupil, the ophthalmologist checks the condition of the ocular arteries and veins, the presence of structural abnormalities of the vessels, the presence of venous effusions, signs of occlusion, etc. In addition, if necessary, angiograms can be processed to identify tissue disorders or subsequent processing of angiographic photographs in digital form. In general, fluorescent ophthalmic angiography and other vascular diagnostic methods play an important role in clarifying the diagnosis, planning treatment tactics and assessing its effectiveness
Fluorescent angiography is a new method for diagnosing vascular pathology of the eyes, which allows you to assess the condition of blood vessels and determine the presence of hemorrhages and other pathologies. This method is less invasive than CT or MRI and is much more comfortable for the patient. Images obtained during fluorescent angiography are one of the most informative ways to diagnose inflammation, ischemia or hemorrhagic edema of retinal vessels.
The method is based on the intravenous administration of a special dye - sodium fluorescein. Fluorin is completely absent in the eyes, but after the injection of the dye, it actively penetrates into the inflamed vessels through their walls. During angiography, a laser beam illuminates the vessels affected by the dye, and a camera records each blood vessel. A specialist can also observe changes in paint color to determine the degree of inflammation and identify damaged or destroyed areas. Fluorescence angiography is considered one of the most accurate methods for examining the eyes, as it allows you to see not only vascular abnormalities, but also inflammation, which cannot always be detected using other diagnostic methods. For example, fluorescence angiography shows the presence of hemorrhage even if the vessel has a thin wall. Other advantages of the method are the painlessness of the procedure and its short execution time (from 2 minutes to an hour depending on the type of examination).