The sclera is the external covering of the eye which:

In the mammalian eye, the 'fovea' is the center of the visual field, where

The maximum refraction of light occurs at the ....

Read the following statements with respect to the human eye and select the correct option.
Statement $I$: Uvea is the middle,vascular,and non-pigmented layer of the eye that lies outer to the retina.
Statement $II$: The size of the lens can be adjusted depending on the distance of the object from the eye,through the muscles of the ciliary body and the suspensory ligament.

Which of the following cranial nerves are involved in the movement of the eye?

The retinal blood vessels enter the eye at