Magnifiers are optical devices that make objects appear larger than they are. They work by bending light rays to create a magnified image, allowing users to see fine details more clearly. Common types of magnifiers include handheld lenses, magnifying glasses, and digital magnifiers. They are often used in various fields, such as medicine, jewelry making, and education. These tools are especially helpful for people with vision impairments, as they can enhance reading and viewing experiences. Magnifiers come in different shapes and sizes, including portable models for on-the-go use and stationary models for desks or workstations.