But at a distance, images focus at a point in front of the retina… making distance vision blurry.

但在远处，图像集中在视网膜前面的一点，使远距离视觉模糊。

The distance between the image and the lens is the image distance and is related to the object distance and the focal length by a very important equation.

像与镜头的距离是像与物的距离与焦距有关的一个很重要的方程。

We will use the object distance and the focal length of the lens to find the image distance, the location where the image forms on the other side of the lens.

我们将使用物距和镜头的焦距来找到像距，即在镜头另一侧形成图像的位置。