The Eye
Section 1: Label the diagram of the eye.
- Sclera
- lens
- Iris
- Cornea
- Retina
- Pupil
- Optic Nerve
Section 2: Complete the optical illusions and write down how you think each optical illusion works.
Young
Yes
Neither, both are the same size
Two faces and then see a white vase
Small is bigger
See three blocks of rectangle prism.
Can see white arrows going up and down and lines of black as well
A line with various arrows
A staircase
Blocks of rectangles
Two blocks
Various optical illusion triangle
One circle with another line dotted around and another circle where the dotted line is inside
Many shapes
Section 3: Find 10 interesting facts about the eye.
Your eye focuses on 50 different objects every second.
Your eyes can see approximately 10 million different colours.
It is impossible to sneeze with your eyes open.
80% of all learning comes through your eyes.
An average person blinks 12 times a minute.
The optic nerve contains more than one million nerve cells.
On average, you will blink approximately 4,200,000 times in a single year.
80% of our memories are determined by what we see.
A blink typically lasts 100-150 milliseconds.
If the human eye was a digital camera, it would have 576 megapixels.
Section 4: Colour Blindness Eye test
What are your colour blind test results?
Inconclusive
What does this mean?
Fine
What is normal colour vision?
It uses all three types of light cones correctly and is known as trichromacy.
