Wednesday, February 13, 2008
Disease caused by hypertension
Hypertension is a common disease of the cardiovascular system. China's population incidence rate of 5.11%. About 70 percent of patients with retinal changes. Fundus positive rate has nothing to do with gender, age and patients are more closely linked, age greater positive rate higher. Clinical common after a chronic hypertension patients, fundus positive rate was directly proportional to the length and duration; course of a longer time, fundus higher positive rate. Blood pressure increased with the degree of parallel basic fundus positive rate, diastolic blood pressure increased on the role of retinal lesions more significant. Eye refraction, the positive rate of hypertension fundus has a certain impact; hyperopia above address eyes, myopia of less than face up to eye. Essential hypertension retinopathy is caused due to hypertension. To the retina and retinal artery contraction, as papillary lesions as the main performance. In the optic nerve head around about 4 ~ 6 nipple diameter of the site, with a grey retinal edema, increased small artery Centre reflection, arteriovenous cross levy, bright red flame-shaped bleeding, Mianchuzhuang leukoplakia, yellow-white exterior, rigid and exudative macular stellate map as the main feature. Multiple 40-year-old after. Retinal lesions and the degree and duration of severe hypertension is closely related. With the decline in blood pressure and control, fundus bleeding, such as exudative lesions have gradually improved, the general effect is very good, but advanced to the less effective. Hypertension is divided into type and ease into the radical-two. The overwhelming majority of clinical findings for ease-type, slow disease progression; radical type occurs in young and middle-aged, the sick or the beginning of the rapid development that is a few years and then suddenly slow process development.
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