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These questions will help you to see the light. Take the quiz and see if you shine brightly.

Your eyes can see colour and brightness, but there’s one more thing they can detect. With the right technique, many people can tell if light is polarised – no glasses needed!

Our eyes play a huge part in helping us explore the world around us, but occasionally they play tricks on us. In this optical illusion, we’re testing your perception of colour by making an after-image optical illusion. In other words, we’re tricking your eyes to see colours that aren’t really there. Check it out!

Bionic vision technology aims to help people who are blind or vision-impaired regain their sense of sight. Like with the cochlear implant, or bionic ear, Australian researchers are again leading the way, this time to develop a bionic eye.