What type of lenses has their tops closer to the face?

The correct answer refers to retroscopic tilt lenses, which are designed with the top of the lenses positioned closer to the face compared to the bottom. This design allows for a better field of view, especially for certain activities that require enhanced visual performance like reading or details up close. By angling the lenses in this manner, it can help reduce distortion for the wearer, particularly in lower vision zones.

Retroscopic tilt is specifically approached to improve comfort and effectiveness for individuals whose visual tasks require a closer gaze to their natural line of sight. The tilt enables the optical center of the lens to align more closely with the user’s eyes, providing a more direct line of sight without needing to tilt the head back, which can enhance ergonomics and reduce strain.

The other types of lenses mentioned have different characteristics: pantoscopic tilt lenses angle downward from the horizontal plane and are designed to accommodate the natural position of the head while looking straight ahead. Numont lenses are a style of rimless eyewear that focus on minimalism rather than tilt. Semi-rimless lenses also focus on aesthetic design rather than angle placement. Each has distinct uses, but they do not place the tops of the lenses closer to the face the way retroscopic tilt lenses do.