1. Different application objects: the big nose pad is more suitable for people with big noses or people with deep indentations on their noses, and it is also recommended for people with heavy noses. Medium nose pad is more suitable for children, because it is thinner.
2. Different shapes: the big nose pad is bigger and looks exaggerated. Some shapes are suitable for the nose bridge inclined upward, while others are suitable for the nose bridge inclined downward. Medium-sized nose pads are relatively small and common, and are suitable for most people's noses.
The choice of nose pad mainly depends on personal comfort and the shape of nose bridge. It is suggested to choose the appropriate nose pad according to your actual situation when buying glasses.