Eye Health

Updated 16 January 2015

How does a contact lens work?

They’re hard to see, but can have an almost miraculous effect on your quality of life. But how do contact lenses work, exactly

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They’re hard to see, but can have an almost miraculous effect on your quality of life. But how do contact lenses work, exactly?

Contact lenses are little works of art, delicately crafted thin optical discs, worn directly on the eye. They’re held in place by a layer of tears.

The lens acts as an extension of the eye itself, correcting aberrations that cause a variety of defects.

Read more:
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Conditions affecting the cornea
Which type of lens care system is best?

 

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Optometrist

Megan Goodman qualified as an optometrist from the University of Johannesburg and is currently practising at Tygerberg Academic Hospital in Cape Town. She has recently completed a Masters degree in Clinical Epidemiology at Stellenbosch University. She has a keen interest in ocular pathology and evidence based medicine as well as contact lenses.

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