人老眼花,一些老年人会配上一副老花镜,然后一直用下去。然而,老花镜常年不换也会对眼睛有一定的损害,因为老花状况也会随时间流逝而发生变化。医学专家经过研究后告诫老年人:最好三年左右检查一下视力,并更换合适的老花镜。 People dazzled, some elderly people will be accompanied by a reading glasses, and then continue to use it. However, reading glasses perennial do not change will also have some damage to the eyes, because presbyopia conditions will change over time. After medical experts warned the elderly: it is best to check vision for about three years and replace the appropriate reading glasses.