Contact lenses work much the same way as glasses and correct refractive errors. The difference is that contact lenses rest directly on the eye, rather than in front of it. […]
How Do Contact Lenses Work?

Contact lenses work much the same way as glasses and correct refractive errors. The difference is that contact lenses rest directly on the eye, rather than in front of it. […]
Contact lenses can effectively correct myopia by altering the way light is refracted as it enters the eye. […]