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Explained in plain English

What is the retina?

The retina is a light-sensitive layer at the back of your eye, like a tiny screen. It converts the light from things like the sun during an eclipse into electrical signals. These signals are then sent to your brain, allowing you to see. Protecting your retina is crucial, especially during an eclipse, as direct sunlight can cause permanent damage.

Stories that explain this

12 August eclipse will dim UK skies

Questions this opens up

How does the eye see? What are rods and cones? Can retinas be damaged?

Related explainers

What causes an eclipse? What are eclipse glasses? Can eclipses affect us? Why are eyes so delicate? Where can I buy them? How often do eclipses happen? Is it safe to look at an eclipse? Why are some places darker?

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