Jianzhen suffered from cataracts in his old age, but he was not blind. However, it can be concluded that he had certain eye diseases at that time, so he went to the Western Regions to ask doctors to treat him. But what he didn't expect was that instead of curing his eyes, these doctors infected his eyes. Even so, he could still distinguish the fonts at that time, so he could ensure that his handwriting was very neat.

In many ancient books, it is said that Jianzhen has a dim vision. To put it bluntly, it actually means that Jianzhen suffers from senile cataracts. Because he had a disease in his eyes at that time, he rushed to the Western Regions and asked a famous local doctor to treat his eyes. Even so, he did not expect that during the treatment process, when the doctor performed surgery on his eyes, his eyes would become infected due to objective reasons such as weather. Not only did his condition not get treated, it actually made his condition worse.

Although everyone knows that there is something wrong with Jianzhen’s eyes, it can still see the fonts clearly. He was not completely blind when he arrived in Japan. Jianzhen was a very famous eminent monk in the Tang Dynasty, and his ability to learn the Tao was very strong. And he went through all the trouble to reach Japan. His indomitable spirit made all people remember him.

It can be said that Jianzhen's eastward journey made the exchanges between the Tang Dynasty and Japan closer. At the same time, it also spread Chinese culture to Japan, allowing many people in China to start learning Chinese culture, further promoting China's national prestige, and at the same time allowing more Japanese people to feel the charm of traditional Chinese culture. We should not deny Jian Zhen's noble character just because of some diseases in his body. It can be said that it was because of his efforts that Tang Dynasty and Japan could communicate more closely. He was an excellent diplomat and an indirect bridge for communication between Tang Dynasty and Japan, so we must Show him respect.