原发性高血压患者高血压患者当病情发展到一定程度时,会使眼底视网膜上的血管,尤其是动脉血管发生改变。出现小动脉壁硬化,视网膜上会出现水肿、出血、渗出等,严重的可导致视神经乳头的改变。通过检查眼底来了解高血压的发展程度,对于确定治疗方案和预后的判定是有意义的。糖尿病患者糖尿病后期,多会出现视网膜病变等并发症。可引起视网膜上微血管的形成,以及出血、硬性渗出、软性渗出,还可导致增殖性改变,进而引起视网膜脱离。如果不能及时诊治,最后会导致视力完全丧失。通过眼底检查,可以早发现并及时给予诊断和治疗。肾炎、白血病、贫血、心脏病、急性传 Hypertensive patients with essential hypertension when the disease develops to a certain extent, will make retinal blood vessels, especially arterial changes. Small artery wall hardening occurs, there will be retinal edema, bleeding, exudation, etc., can lead to serious changes in the optic nerve head. By examining the fundus to understand the extent of development of hypertension, it is meaningful to determine the treatment plan and prognosis. Diabetes late diabetic patients, more complications such as retinopathy may occur. Can cause retinal microvascular formation, as well as bleeding, hard exudation, soft exudation, but also lead to proliferative changes, which in turn cause retinal detachment. If you can not timely diagnosis and treatment, will eventually result in complete loss of vision. Through the fundus examination, you can early detection and timely diagnosis and treatment. Nephritis, leukemia, anemia, heart disease, acute transmission