人到老年,一些老年性疾病往往会随之出现,自然视力亦会开始发生变化。因此,从预防保健的角度出发,步人老年后即应着手进行视力保护,并常做眼睛的检查。这样,许多眼病便能及早被发现和得 When it comes to old age, some senile diseases often follow, and natural eyesight will begin to change. Therefore, from the point of view of preventive health care, we should start to carry out eye protection after we reach old age and often conduct eye examinations. In this way, many eye diseases can be found early and too