What should be avoided when fitting glasses to ensure proper alignment?

When fitting glasses, ensuring proper alignment is crucial for the wearer's comfort and visual acuity. Tilting the frames to one side is particularly important to avoid because this uneven positioning can significantly disrupt the optical center of the lenses relative to the pupil. When the frames are not aligned properly, it can lead to distorted vision and discomfort, as the lenses may not be functioning as intended.

Correct alignment involves centering the optical axis of the lenses with the wearer's line of sight, which can be compromised if the frames are tilted. This misalignment can cause headaches, eye strain, and overall dissatisfaction with the eyewear, emphasizing the importance of proper frame adjustment during fitting. Ensuring that the frames are level provides a foundation for optimal visual correction and comfort.