| Contact lenses are small, ultra-thin, optical lenses worn directly on the eye to correct vision problems (such as nearsightedness, farsightedness, astigmatism or presbyopia). Contact lenses can be hard or soft, can be used to replace glasses and bifocal glasses, and can also enhance or change the colour of your eyes.
Most contact lenses are soft, or "hydrophilic" – meaning they are made of water, and this is how soft contact lenses stay soft. Soft contact lenses are extremely thin and are made of materials that allow oxygen to pass through and reach the surface of the eye.
Almost anyone can wear contact lenses – even some babies are fitted with contact lenses when they have eye problems! |
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