Which optical device uses light rays to aid in vision correction?

A lens is an optical device specifically designed to manipulate light rays in a way that aids in vision correction. It achieves this by refracting or bending light as it passes through, which helps focus images properly onto the retina in the eye. Different types of lenses, such as convex lenses for hyperopia (farsightedness) and concave lenses for myopia (nearsightedness), are utilized to correct various types of vision problems.

In contrast, while a prism can bend light, its primary function is to disperse light into its color components rather than to focus images for vision correction. A mirror reflects light and does not alter its path for the purpose of focusing images for vision. A filter modifies certain wavelengths of light but doesn't inherently correct visual acuity issues as lenses do. Thus, the lens is the correct choice because of its unique capability to aid in clear vision through proper light refraction.