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目前认为老年人易患的疾病主要有心脏病、高血压、动脉硬化、糖尿病、慢性肾炎等。这些疾病对老年人生命威胁极大,且多属慢性病,表面症状变化往往不明显,一旦发作常使人猝不及防。上述各种老年疾病,在其病情发展的各阶段,眼底都有不同的异常改变。下面分述如下:
At present, the diseases predisposed to the elderly mainly include heart disease, hypertension, arteriosclerosis, diabetes and chronic nephritis. These diseases threaten the life of the elderly is extremely large, and mostly chronic diseases, changes in the surface symptoms are often not obvious, once the attack often caught off guard. The above-mentioned various kinds of diseases of the elderly have different abnormalities in the fundus at various stages of their disease development. The following is as follows: