If the front surface of the nose pads cuts into the nose and the back surface does not touch, which angle is likely incorrect?

When the front surface of the nose pads is cutting into the nose while the back surface does not touch, it indicates an issue with the positioning of the eyewear on the nose. The splay angle of the bridge specifically relates to how the nose pads are oriented in relation to the bridge of the frame. If the splay angle is too wide, the nose pads will be positioned in such a way that the front surface dips down too aggressively, leading to the cutting or digging into the skin, rather than providing adequate support.

A proper splay angle allows the nose pads to rest comfortably against the nose without excessive pressure. Therefore, an incorrect splay angle would create an imbalance, resulting in the front part of the pads being too aggressive against the nose, while the back remains unsupported, causing discomfort.

The other angles mentioned—such as the frontal angle, crest angle, and horizontal angle—all play roles in the overall fit but are not primarily responsible for the described situation of the nose pads digging in. Understanding the significance of the splay angle helps in making the necessary adjustments for better comfort and fit of the eyewear.