Anatomy - Parts of the eye

Lens

→ A clear structure that changes shape to focus light onto the retina.

Retina

→ The light-sensitive layer at the back of the eye that turns light into nerve signals.

Ciliary Body

→ A muscle that changes the shape of the lens to help focus.

Cornea

→ The clear front surface of the eye that lets light in and helps focus it.

Pupil

→ The opening in the center of the iris that lets light into the eye.

Aqueous Humor

→ A clear fluid between the cornea and lens that nourishes the eye and maintains pressure.

Sclera

→ The white, tough outer layer of the eye that protects it.

Blindpsot

→ The area on the retina where the optic nerve exits; no vision occurs there.

Optic Nerve

→ The nerve that carries visual information from the retina to the brain.

Vitreous Humor

→ A thick, jelly-like substance that fills the back of the eye and helps it keep its shape.

Iris

→ The colored part of the eye that controls how much light enters by adjusting the pupil.