One-eyed visors, known as side glasses, could be activated with the simple press of a button to cover a single eye. A pink version was often seen worn by Lop. The glasses worn on Lop's head had the ability to display her environment using the infrared spectrum, or to bring up data for her to observe.
The short film "Lop & Ochō" from Star Wars: Visions marked the initial appearance of side glasses. They are called そばのメガネ (soba no megane, side glasses) in the Japanese version, although this detail is absent from both the English dub and the subtitles.