The central part of the retina where the light rays are focused after passing through the pupil and the lens is a circular area called the macula.

The fovea and a small area surrounding it are not supplied by the central retinal artery or its branches, but instead by the choroid.

[3] The central retinal artery supplies blood to all the nerve fibers that form the optic nerve, which carries the visual information to the lateral geniculate nucleus of the thalamus, including those that reach over the fovea.

[4] Thus if the central retinal artery gets occluded, there is complete loss of vision in that eye even though the fovea is not affected.

This is the basis of the famous "Cherry red spot" seen on examination of the retina on funduscopy of a central retinal artery occlusion (CRAO).