The Human Machine Mystery 2

Front

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

Back

The cornea is the clear layer over the eye that acts as a protective layer and helps to focus light onto the retina.

Front

What happens to vision if the cornea is cloudy?

Back

If the cornea is cloudy, vision is impaired, and one can only distinguish between light and dark.

Front

What is the colored part of the eye called?

Back

The colored part of the eye is called the iris.

Front

True or False: Only people with blue eyes can be blind.

Back

False.

Front

What is the name of the 'screen' at the back of the eyeball where light is focused?

Back

The retina.

Front

What role does the iris play in vision?

Back

The iris controls the size of the pupil and thus regulates the amount of light that enters the eye.

Front

What is the pupil?

Back

The pupil is the opening in the center of the iris that allows light to enter the eye.

Front

How does light travel through the eye?

Back

Light enters through the cornea, passes through the pupil, is focused by the lens, and then hits the retina.

Front

What is the lens's function in the eye?

Back

The lens focuses light onto the retina, allowing for clear vision.

Front

What is the significance of the retina in the visual process?

Back

The retina contains photoreceptor cells that convert light into electrical signals sent to the brain.