Branch retinal artery occlusion

Introduction to branch retinal artery occlusion Retinal branch artery occlusion (RAO) is less common than central retinal artery occlusion (CRAO), more common in younger patients, and more than two-thirds of BRAO is caused by obstruction of the embolus from the cardiovascular system. Retinal branch artery occlusion (BRAO) occurs in the temporal side, especially in the superior iliac artery. The prognosis of vision and fundus changes depend on the location and extent of arterial occlusion. The disease is common in the elderly, young people, high blood pressure and kidney disease. basic knowledge The proportion of illness: 0.001% Susceptible people: no special people Mode of infection: non-infectious Complications: retinal vasculitis, central retinal artery occlusion, central retinal vein occlusion, retinitis

Cause of retinal branch artery occlusion

Thrombosis or embolism is the main cause. Sources of emboli include carotid cholesterol emboli, platelet fibrin emboli for macrovascular arteriosclerosis, calcified embolus of heart valve; rare cardiac sphincter emboli, fat embolus for long bone fracture, infective endocardium Inflamed bacteria plugs and the like. The systemic cause is the same as CRAO.

Retinal branch artery occlusion prevention

The disease is related to systemic vascular disease. It should pay attention to controlling hypertension, arteriosclerosis, avoiding emotional agitation, paying attention to controlling intraocular pressure during eye surgery and postoperative operation, and promptly finding timely treatment.

Retinal branch artery occlusion complications Complications Retinal vasculitis Central retinal artery obstruction Central retinal vein obstruction Retinitis

Retinal vasculitis, central retinal artery occlusion, central retinal vein occlusion, retinitis.

Retinal branch artery occlusion symptoms common symptoms visual impairment retinal edema visual field defect

The fundus changes in the acute attack may not be obvious. In a few hours, the affected area of the affected artery is infarcted, and the retina is grayish white edema and turbid. Sometimes the area where the embolus is blocked can be seen. Vision can be reduced to varying degrees, and the corresponding areas of the field of view are shaded. A few days later, as the blood vessels recanalized and reperfused, the edema subsided. Permanent permanent vision defects. Obstruction outside the posterior pole, clinical symptoms are not obvious.

Examination of retinal branch artery occlusion

Fundus examination, fundus microvascular examination, retinoscopy, vision.

Diagnosis and diagnosis of branch retinal artery occlusion

It has the following symptoms: Retinal edema, visual impairment, visual field defect.

Depending on the location and extent of the obstruction, the patient's visual acuity and visual field may be damaged to varying degrees, manifested by varying degrees of visual acuity, with shadow obscuration in front of the eye. Fundus examination showed that the obstructed arterial tube was thinner and blocked the retinal edema in the arterial distribution area, which was fan-shaped or quadrant-shaped gray-white opacity. Occasionally you can find the area where the embolus is blocked. If the posterior retina is involved, it can also be expressed as "cherry red dot". The electroretinogram is usually normal or mild abnormal, and the visual field examination is bundled or fan-shaped. The fundus fluorescein angiography shows that the obstructed artery and the corresponding reflux vein are filled slowly, and the late wall fluorescein stains and leaks fluorescein.

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