What describes a combination frame?

A combination frame is characterized by its construction, which includes major parts made of plastic along with some components made of metal. This hybrid design allows for a blend of aesthetics and functionality, taking advantage of the lightweight and comfortable nature of plastic while also utilizing metal for structural support or style.

The frame's design makes it versatile for various style preferences and can provide more comfort to the wearer. Understanding this combination is crucial for recommending the right frame to a patient based on their lifestyle or personal preferences. The other descriptions, while they mention characteristics of frames, do not accurately define what a combination frame is, as they refer to aspects such as color, lens types, or exclusive uses with certain lens types, which do not capture the essence of what makes a combination frame distinct.