Photoreceptor cells capable of sensing specific wavelengths of light (red, green, and blue), and hence color, and fine detail.

The eye-wall's middle layer that contains blood vessels and muscle that controls the lens.

The clear part in the front of the outer fibrous layer of the eye.

The colored part of the eye, part of the vascular layer, that regulates how much light is allowed into the eye by controlling the size of the pupil.

The property that our brain perceives as different colors or hues in vision.

A type of cell in the retina that has one projection listening to photoreceptor cells and one projection synapsing with another neuron.

The property that our brain perceives as different brightnesses in vision.

The type of cell in the retina that gathers signals from many other cells, then uses its axons to carry the signals through the optic nerve to the brain.

The ring of the muscle at the front of the vascular layer that holds and contains the lens.

The hole in the front of the eye's vascular layer through which light can enter.

Receptor cells capable of sensing lower levels of light, but are perceived as grayscale, and are important in peripheral vision.

The white part of the outer fibrous layer of the eye.

The transparent disc held and stretched by the ciliary muscles that focuses images on the retina.

The innermost layer of the eyeball's wall containing all of the photoreceptor cells.

A type of cell in the retina that gathers signals from many other cells, then uses its axons to carry the signals through the optic nerve to the brain.

The outermost tunic or layer of the eye that is made up of the white part around the sides and the clear part in front.

The muscles that move the eyeball to look in different directions.

The part of the vascular layer around the sides and back of the eyeball that carries many blood vessels.

The clear part in the front of the outer fibrous layer of the eye.

The structure that produces tears to protect and lubricate the eyeball.

The outermost tunic or layer of the eye that is made up of the white part around the sides and the clear part in front.