1.For example, sunglasses are not just for fashion but they can also serve as a great way to protect your eyesight from ultraviolet rays.
2.His bad eyesight exempted him from military service.
3.Two main reasons can cause poor eyesight: too much time spent indoors studying and too little time spent outdoors playing.
4.A consultant, after all, is not unlike an optician who prescribes a new pair of glasses—or framework—to improve your eyesight.
5.They have better eyesight than human and have been trained to spot orange life jackets of people lost at sea.
6.How is your eyesight?
7.Fewer Chinese primary school students have poor eyesight than Australian ones.