If a frame bridge rests solely on the top of the nose, which angle is likely incorrect?

The frontal angle of the bridge is crucial in ensuring that the frame fits comfortably and securely on the nose. If the frontal angle is incorrect, it can lead to poor distribution of weight and pressure on the nose, potentially causing discomfort for the wearer. This angle determines how the frame aligns with the face and can significantly affect both aesthetic appearance and functional performance.

When the frontal angle is aligned correctly, it allows for a proper fit, ensuring that the frame does not slip off or sit too high or low on the nose. An incorrect frontal angle may result in the frame resting solely on the bridge of the nose, which could cause discomfort and affect the stability of the eyewear.

On the other hand, the splay angle, crest angle, and horizontal angle also play important roles in the overall fit and should be considered; however, it is the frontal angle that directly influences the way the frame interacts with the top of the nose. This makes the frontal angle the most significant to address when evaluating how the frame sits on the nose.