Clip-on lenses are additional optical accessories that can be attached to regular eyeglasses. They provide various functionalities, such as reducing glare, enhancing contrast, or offering protection from harmful UV rays. These lenses are designed to easily snap onto the existing frames, making them a convenient option for those who want to change their vision correction without needing a separate pair of glasses. Available in different styles, clip-on lenses can include polarized lenses for outdoor activities, blue light blocking lenses for screen use, or tinted lenses for fashion. They are a practical solution for individuals who require different visual aids throughout the day.