What adjustment should be made if the right side of eyewear is closer to the wearer's face than the left side?

When the right side of the eyewear is closer to the wearer's face than the left side, the appropriate adjustment involves angling the right temple in or the left temple out. This adjustment aims to create a balanced fit, ensuring that both sides of the eyewear are equidistant from the wearer’s face.

By angling the right temple in, it draws that side away from the face, allowing for a more comfortable fit. Simultaneously, angling the left temple out helps by moving that side slightly away from the head as well, ensuring that both sides are even. This balancing act is essential for not only comfort but also for optimal visual alignment, as misaligned eyewear can lead to distorted vision and discomfort for the wearer.

The other choices do not address the imbalance correctly. Adjusting the left temple without compensating for the right side may worsen the fit, while simply angling the right temple inwards could still leave the left side too far away, leading to instability. Thus, the correct adjustment enhances the overall functionality and comfort of the eyewear.