Visual Illusions: Why You See Things That Aren't There

What's the deal with all those little flashes of light you see when you close your eyes? And why do truck drivers and people in jail see glowing circles and spirals?

The process of seeing is a collaboration between the brain and the eye. How does the eye work to create sight, from the lens and iris to the pupil, retina and optic nerve? Biology - Being Human - Learning Points. A far larger part of the...

This video covers

- The structure (anatomy) of th
e eye
- How the iris reflex works and allows us to respond to changes in light

intensity

Exam
board specific info:
AQA - Only
triple/separate science...

The human eye is a wonderful feat of evolution. We can see tiny specks and huge mountains. We can see in the dark and we can also see hundreds of shades of bright, vibrant colours. So how does the eye work? The eye contains special cells...