Front

What is the function of the pupil in the human eye?

Back

The pupil regulates the amount of light that enters the eye, allowing for better vision in varying light conditions.

Front

What is the retina?

Back

The retina is a light-sensitive layer at the back of the eye that converts light into neural signals for the brain to interpret.

Front

What is the role of the lens in the eye?

Back

The lens focuses light onto the retina, adjusting its shape to help focus on objects at different distances.

Front

What is the cornea?

Back

The cornea is the transparent front part of the eye that covers the iris and pupil, providing most of the eye's optical power.

Front

What is the vitreous humor?

Back

The vitreous humor is a gel-like substance that fills the space between the lens and the retina, helping maintain the eye's shape.

Front

What is the function of the iris?

Back

The iris controls the size of the pupil and thus the amount of light that enters the eye, contributing to vision.

Front

What is the optic nerve?

Back

The optic nerve transmits visual information from the retina to the brain, where it is processed into images.

Front

What is the sclera?

Back

The sclera is the white outer layer of the eyeball that provides structure and protection.

Front

How does the eye adjust to bright light?

Back

In bright light, the iris constricts the pupil to reduce the amount of light entering the eye.

Front

What happens to the lens when focusing on a nearby object?

Back

The lens becomes thicker to increase its optical power, allowing for a clear image of the nearby object.