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。

It's gonna need to have fairly good distance vision be able to see just generally where it's going and targets on the ground.

它需要一个良好的远距离视觉，才能看清地面的大致情况并锁定地面目标。