The statement 'If a frame is in four point alignment, it will always sit straight on the patient's face' is:

• A. True
• B. False
• C. Sometimes
• D. Not reliable

Answer: (B)

Four-point alignment is a fitting method used to position the frame against the face at four reference contact points so the front of the frame sits level and centered when the patient looks straight ahead. It helps ensure the frame is aligned with the eyes and sits symmetrically, providing a stable, comfortable fit.

However, even with this alignment, the frame will not always sit perfectly straight on every face. Facial asymmetry, differences in the nose bridge and pad angles, temple length variations, and the way the frame interacts with the wearer’s ears can all shift the frame slightly once it’s actually worn. Additionally, head position is not fixed—tilting or rotating the head, or looking through the lenses at different angles, can change how the frame sits. Because of these factors, four-point alignment serves as a guide, not a guarantee, and further adjustments (nose pad angle, bridge fit, temple alignment, pantoscopic tilt, etc.) may be needed to achieve a truly straight and comfortable fit across typical wearing positions.