This study investigates the comfort of users when head-worn displays (HWDs) are positioned at different horizontal angles relative to the user's primary position of gaze (PPOG). Previous research suggests that placing the virtual image toward the ear improves comfort, but less is known about positioning it toward the nose. We conducted two studies with 12 participants each, testing a range of horizontal angle offsets from -30° to +30°, including both directions from the PPOG. The results indicate that users tolerate negative offsets (toward the nose) better than positive ones (toward the ear). The study found that reading on displays with pixels between -24.6° and +19.6° is comfortable, with users showing higher comfort for negative offsets. The results suggest that displays centered at negative angles may offer benefits for stereoscopic vision and support more system features with unique layouts. The study also highlights the importance of considering the display's angular offset from the PPOG when designing HWDs, as it significantly affects user comfort and performance. The findings provide a guideline for manufacturers to position displays within a specific angular range to ensure comfort during reading tasks, which is one of the most visually intensive and common tasks for computer displays. The study also demonstrates the potential of negative angular offsets in supporting more complex visual phenomena and improving the effectiveness of stereoscopic optical see-through systems.This study investigates the comfort of users when head-worn displays (HWDs) are positioned at different horizontal angles relative to the user's primary position of gaze (PPOG). Previous research suggests that placing the virtual image toward the ear improves comfort, but less is known about positioning it toward the nose. We conducted two studies with 12 participants each, testing a range of horizontal angle offsets from -30° to +30°, including both directions from the PPOG. The results indicate that users tolerate negative offsets (toward the nose) better than positive ones (toward the ear). The study found that reading on displays with pixels between -24.6° and +19.6° is comfortable, with users showing higher comfort for negative offsets. The results suggest that displays centered at negative angles may offer benefits for stereoscopic vision and support more system features with unique layouts. The study also highlights the importance of considering the display's angular offset from the PPOG when designing HWDs, as it significantly affects user comfort and performance. The findings provide a guideline for manufacturers to position displays within a specific angular range to ensure comfort during reading tasks, which is one of the most visually intensive and common tasks for computer displays. The study also demonstrates the potential of negative angular offsets in supporting more complex visual phenomena and improving the effectiveness of stereoscopic optical see-through systems.