Well, like glasses, contact lenses work by bending light rays just the right amount to make the object come into focus on the retina at the back of the eye.

• 恩，跟普通眼镜原理一样，隐形眼睛镜片也是适当调整光线射入的角度，以合理的光线容量集中地将物体映射在后眼的视网膜上。