What will come from bringing the pads too close together?

Bringing the pads too close together can lead to increased lens distortion. When the nose pads on a pair of eyeglasses are improperly placed, particularly when they are positioned too close together or not adjusted correctly for the wearer’s face, it can negatively impact how the lenses align with the eyes. This misalignment may cause optical anomalies such as distortion or blurriness, especially in higher prescription lenses.

Lenses are designed to provide a clear vision when aligned properly with the pupil's optical centers. If the pads are too close together, it might shift the optical center of the lens away from where the wearer's pupil is situated, resulting in visual distortions. Hence, proper positioning of the nose pads is crucial for maintaining optimal optical performance and ensuring that the wearer's vision remains clear and comfortable.