The choroid is located between the sclera and cornea and extends over the entire posterior part of the eyeball. It has a high density of blood vessels and supplies the retina with nutrients and oxygen.
The choroid merges with the ciliary body in the anterior segment of the eye. In addition, the choroid is also responsible for thermal regulation of the retina and absorbs stray light that would otherwise impair vision. The anterior part of the choroid is even involved in accommodation of the lens.
The choroid is the most perfused tissue in the eye and thus responsible for the red pupils that appear in a photograph taken with a flash.
Anatomy of the human eye
Optic nerve (lat. Nervus opticus) in the eye
The optic nerve is responsible for ensuring that information from the retina reaches the brain. The concentrated bundle of millions of nerve fibers converts the light stimuli from the retina into impulses and sends them to ...
Inner eye shell
The inner shell forms the retina. It is used to receive light stimuli. The light impressions are transmitted to the brain via the optic nerve and processed there.
Blind spot (papilla)
The so-called blind spot is the point in the eye where the retina is interrupted and merges with the optic nerve. Since there are no light receptors at this point, ...