What is the disk edema?

The

disk, more precisely called the swelling of the optical disk, is a health condition in which there is a small area on the very back of the eyeball where the optical nerve is connected, swollen. Lze jej pozorovat lékařem tím, že se podíváme na duhovku oka pomocí oftalmoskopu. The most common cause of the disk edema is to slow down the lead along the optical nerve, but the most worrying cause is intracranial pressure. Patients with disk edema sometimes report nausea, headaches, ears ringing, intermittent double vision or other vision problems; Often, however, they do not notice any symptoms at all.

The mechanical symptoms observed by a physician or ophthalmologist include visible bulging of the optical disk into the back of the eyeball, blurring the edges of the optical disk and folds in the retina or choroid - a layer of connective tissue in the eye wall. Visible symptoms involving the venous system include small areas of necrosis or dead tissue, bleeding radiating from the disk edema and the presence of excess blood inweaving. The combination of brands is used in determining the phase of developing a particular disk edema.

slow guidance between optical nerve cells can lead to the accumulation of intracellular fluids and cell waste, which then moves towards the head of the optical nerve. If swelling is observed on the optical disk of both eyes, it is referred to as bilateral disk edema and can be caused by high intracranial pressure. High intracranial pressure can be caused by hydrocephalus, tumors or brain hypertension. Swelling found only in the eye is called asymmetric edema disk and may be caused by blood leakage from a malformed blood vessel in the brain near this eye or the presence of intracranial abscess in the brain on the side of the affected eye.

procedures that can help determine the accurate cause of an optical disk case include ultrasound B-scanning, computer topography (CT) and magnetic resonan display(MRI). Ultrasound may exclude swelling caused by the presence of hardened secretions from the optical nerve and CT and MRI scanning can locate tumors, abscesses or bleeding that could cause increased intracranial pressure. If none of these tests is convincing, lumbar puncture can be performed to check the fluid pressure throughout the central nervous system as well as meningitis or spinal cord tumors.