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How much of our perception of the world comes from eyesight?
About 20%
About 100%
About 50%
About 80%
What does the cornea do?
It changes size depending on light.
It helps protect the eye and focus light.
It sends signals to the brain.
It controls eye color.
What part of the eye lets light enter?
Pupil
Iris
Lens
Retina
What happens to the pupil in bright light?
It changes color.
It gets larger.
It disappears.
It gets smaller
What is the coloured part of the eye called?
Retina
Lens
Cornea
Iris
What does the iris do?
It controls the amount of light entering the eye.
It sends signals to the brain.
It helps focus images.
It forms images.
Where is the lens located?
Around the iris
Behind the pupil
In front of the cornea
Behind the retina
What is the main function of the lens?
To form colors
To control light
To help focus on near and distant objects
To protect the eye
Why do some people wear glasses?
Because the iris can’t control the pupil
Because the cornea is too large
Because the retina doesn’t send signals
Because the lens and muscles can’t focus light correctly
What does the retina do?
It controls light entering the eye.
It changes the size of the pupil.
It turns light into signals for the brain.
It protects the eye.
What helps us see colours and form images?
The cornea
The retina
The pupil
The iris
What does the brain do with the images from the eyes?
It ignores them.
It switches them around so we can understand them.
It makes them darker.
It sends them back to the lens.
