Science Quiz: On eye health

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Let’s start with the basics: parts of your eye. The iris is the coloured part of your eye that surrounds the pupil. What is the the white part of your eye that forms the shape of your eyeball, called?

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There are two fluids in the eye that help maintain the shape of your eye and keep the eye in good health. They are known as humours. Name them.

Answer : Aqueous humour and vitreous humour

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A cataract is the clouding of the lens of your eye. Most cataracts develop due to ageing. A cataract develops when the ________ in your eye’s lens start to gradually break down.

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True or False: having high blood sugar increases your risk of having cataracts.

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Which vitamin is crucial to help maintain your night vision? It can be found in foods such as egg yolks, dark, leafy greens, dairy, oily fish and carrots.

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The man in the image above is James Ayscough, a British optician and designer of scientific instruments. He also advertised an eye product, believed to be a precursor to a widely used product today. What is the modern-day product?

Answer : James Ayscough advertised tinted lenses, considered a precursor to today’s sunglasses.

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