The Eye

Retina

The light-sensitive layer at the back of the eye that contains photoreceptor cells and converts light into electrical signals.

Tapetum

A reflective layer behind the retina found in animals with night vision, enhancing vision in low-light conditions.

Iris

The colored part of the eye that controls the size of the pupil, regulating light entering the eye.

Cornea

The transparent, outermost layer of the eye that helps focus incoming light onto the retina.

Pupil

The opening in the center of the iris that allows light to enter the eye, changing size based on light intensity.

Aqueous Humor

A clear fluid in the front part of the eye that maintains eye pressure and nourishes the cornea and lens.

Lens

A transparent, flexible structure that focuses light onto the retina for clear vision, adjusting for near and far vision.

Vitreous Humor

A gel-like substance filling the space between the lens and retina, providing shape to the eye.

Sclera

The tough, white outer layer of the eye that protects it and provides structural support.

Blind Spot

The area on the retina where the optic nerve exits the eye, containing no photoreceptors.

Optic Nerve

The nerve that transmits visual information from the retina to the brain for processing.