A contact lens is a thin, curved lens placed on the film of tears that covers the surface of your eye. Today’s contact lenses are either hard or soft. Most people wear soft contact lenses now.
Contact lenses are commonly worn for vision correction, there are also contact lenses for purely cosmetic and novelty purposes. Coloured contact lenses can enhance or completely change the colour of your eyes, and costume contact lenses can help create some of the special effects seen on the big screen.
All contact lenses, however, are medical devices, regulated by Health Canada. Prescription contact lenses and cosmetic contact lenses all require a prescription. This is because even common complications such as infection and inflammation might lead to vision loss or blindness.
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