eyesight可数吗

　　Your eyesight rights itself very quickly.

　　你的视力恢复得非常快。

　　Her ambition to become an artist was thwarted by failing eyesight.

　　她想成为艺术家的梦想由于视力衰减而破灭了。

　　His paintings had become more impressionistic as his eyesight dimmed.

　　伴随着他视力的下降，他的画作变得更富印象派风格。

　　Until the beating, Cantanco's eyesight had been weak, but adequate

　　挨打前坎坦科的视力就一直很弱，不过也还勉强看得见。

　　There was a problem with the child's eyesight.

　　那个小孩的视力有问题。