Eyeglass frames are the structures that hold lenses in place for vision correction or protection. They come in various materials, including plastic, metal, and wood, and are designed to fit comfortably on the face. The choice of frame can affect both the style and functionality of the glasses, making it important for users to find a suitable pair. Frames are available in numerous shapes, sizes, and colors, catering to different face shapes and personal preferences. Popular styles include aviator, wayfarer, and cat-eye. Properly fitted frames ensure that the lenses are positioned correctly for optimal vision and comfort.