Correcting vision

This lesson looks at how the eye focuses on nearby and far away objects, interpreting ray diagrams and looks at how we treat both long and short sighted vision.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.Select the missing word from the options below to complete the flow chart: Stimulus → receptor → coordinator → ____________ → response

1/7

Q2.What does CNS stand for?

2/7

Q3.Which part of the eye contains light sensitive receptors?

3/7

Q4.Which part of the eye holds the lens in place?

4/7

Q5.Q5, In low light intensities the pupil dilates. Which muscle in the iris contracts to cause this?

5/7

Q6.Blinking is a ________ action.

6/7

Q7.Which part of the brain controls unconscious actions such as pupil dilation?

7/7

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.Select the missing word from the options below to complete the flow chart: Stimulus → receptor → coordinator → ____________ → response

1/7

Q2.What does CNS stand for?

2/7

Q3.Which part of the eye contains light sensitive receptors?

3/7

Q4.Which part of the eye holds the lens in place?

4/7

Q5.Q5, In low light intensities the pupil dilates. Which muscle in the iris contracts to cause this?

5/7

Q6.Blinking is a ________ action.

6/7

Q7.Which part of the brain controls unconscious actions such as pupil dilation?

7/7

Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

  • Click "Close Video"
  • Click "Next" to view the activity

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Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Correcting Vision

This quiz will assess your knowledge on the eye and correcting vision.

Q1.What type of lens is used to correct long-sightedness?

1/6

Q2.What is the name given to the diagram that shows the direction of light travelling into the eye?

2/6

Q3.Which part of the eye contains light sensitive receptors?

3/6

Q4.Which part of the eye holds the lens in place?

4/6

Q5.When focusing on a nearby object, the shape of the lens must be.....

5/6

Q6.The changing of the lens shape to suit the object in focus is known as....

6/6

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Correcting Vision

This quiz will assess your knowledge on the eye and correcting vision.

Q1.What type of lens is used to correct long-sightedness?

1/6

Q2.What is the name given to the diagram that shows the direction of light travelling into the eye?

2/6

Q3.Which part of the eye contains light sensitive receptors?

3/6

Q4.Which part of the eye holds the lens in place?

4/6

Q5.When focusing on a nearby object, the shape of the lens must be.....

5/6

Q6.The changing of the lens shape to suit the object in focus is known as....

6/6

Lesson summary: Correcting vision

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Time to move!

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