我这1年来用smartphone 和电脑加上看电视，眼睛近视又加深了。
很是苦恼。看见下面有帖子说打网球和看远方对眼睛有帮助。
正好我的一个物理教授经常打网球，他学光学的。我刚才特地问了他一下。
他说play tennis helps eye a lot. He plays tennis 3 times a week. Sometimes he had business travel and didn't play tennis for 2 weeks. He could feel vey obvious that his eyes were worse. He said playing tennis was excising eye muscle.
I also asked about looking distance, he said looking distance is helping eye to relax.
He also mentioned that looking at moving stuffs like interstate car moving also excises eye muscle.
我准备看看有无可能从新打网球和看远方来帮助眼睛。
