Bill Nye - Eyeballs Flashcard

Front

What helps your eyes focus when looking at something?

Back

Squinting helps your eyes focus.

Front

Is an image in focus if it forms behind the back surface of the eye?

Back

No, an image is not in focus if it forms behind the back surface of the eye.

Front

What part of the eye is colored?

Back

The iris of the eye is colored.

Front

What did Bill Nye wear at the beginning of the episode?

Back

Bill Nye wore glasses with eyes on springs.

Front

How is the eye connected to the brain?

Back

The eye is connected to the brain by nerves.

Front

What is the function of the iris in the eye?

Back

The iris controls the amount of light that enters the eye.

Front

What is the role of the lens in the eye?

Back

The lens helps to focus light onto the retina.

Front

What is the retina responsible for?

Back

The retina converts light into signals that are sent to the brain.

Front

What happens when you squint your eyes?

Back

Squinting reduces the amount of light entering the eye and helps to focus.

Front

What are the two main types of vision?

Back

The two main types of vision are near vision and distance vision.