What is single vision glasses?

Single vision glasses are corrective eyeglasses that have lenses designed to correct only one type of vision problem, such as nearsightedness or farsightedness. These glasses are commonly prescribed for individuals who require vision correction for activities such as reading, writing, or computer work. Single vision lenses are made up of a single lens power, which means that they have the same prescription across the entire lens. They are available in different materials like glass, plastic, high-index, polycarbonate and Trivex. Single vision glasses can also be prescription sunglasses or tinted glasses that help protect against glare and brightness. They are typically less expensive than other types of corrective glasses such as bifocals or progressive lenses.