His bad eyesight exempted him from military service.
他因视力不好而免服兵役。
Their eyesight can be corrected in just a few minutes by the use of alaser.
他们的视力用激光只要几分钟就可矫正。
Her eyesight is failing.
她的视力日渐衰退。
He suffered from poor eyesight and could no longer read properly.
他视力不好,再也不能正常阅读了。