eye and perpous

Cornea

The clear, dome-shaped surface that covers the front of the eye; helps to focus light as it enters.

Pupil

The dark circular opening in the center of the iris; controls the amount of light entering the eye by changing size.

Iris

The colored part of the eye that surrounds the pupil; regulates the amount of light entering the eye.

Lens

Located behind the iris and pupil; focuses light onto the retina and changes shape to accommodate different distances.

Retina

Light-sensitive tissue at the back of the eye that converts light into electrical signals sent to the brain.

Optic Nerve

The nerve that transmits electrical signals from the retina to the brain for vision perception.

Sclera

The white outer layer of the eye; provides structure, protection, and attachment points for eye muscles.

Choroid

A layer of blood vessels between the retina and sclera that provides oxygen and nutrients to the retina.

Vitreous Humor

The clear gel-like substance filling the space between the lens and retina, maintaining the eye's shape.

Aqueous Humor

The fluid in the front part of the eye that nourishes the eye and maintains intraocular pressure.

Ciliary Body

The structure behind the iris that produces aqueous humor and controls lens shape for focusing.

Macula

The central part of the retina responsible for sharp and detailed central vision, containing a high concentration of cones.

Fovea Centralis

A small pit in the center of the macula responsible for the sharpest vision due to high cone density.

Conjunctiva

A thin, transparent membrane covering the white part of the eye and inside of the eyelids, keeping the eye moist.