Eyeglasses are composed of numerous small components that work together to provide clear vision and a comfortable fit. Many of the small plastic pieces on a frame are integral to how the glasses rest securely on the wearer’s face. Understanding the proper names for these parts is helpful when discussing fit or repairs with an optician, especially regarding the plastic elements that interact with the skin on the nose and behind the ears.
Components Resting on the Nose
The small, often clear, plastic cushions that sit directly on the sides of the nose are called Nose Pads. These components are designed to distribute the frame’s weight evenly across the nasal structure, preventing pressure points and keeping the lenses properly positioned relative to the eyes. This positioning is essential for maintaining the optical center of the lenses and preventing the glasses from slipping.
Nose pads are typically attached to the frame by small metal parts known as pad arms, which allow for subtle adjustments to customize the fit for different facial shapes. Common materials include silicone, polyvinyl chloride (PVC), and polycarbonate, offering different levels of softness, grip, and durability. Silicone pads are known for their pliable texture and non-slip qualities, while polycarbonate provides a harder, more robust structure. Some plastic frames integrate the nose pads directly into the frame material itself, a feature sometimes referred to as a saddle bridge.
Components Hooking Behind the Ear
The long arms of the glasses that extend from the frame’s front are called the temples or arms. The specific plastic or rubberized sheaths covering the ends of these arms, which curve behind the ears, are known as Temple Tips. These tips, also sometimes called earpieces or sleeves, secure the glasses on the head by gently hooking around the ear’s contour.
Temple tips are important for the overall stability and comfort of the eyewear, balancing the frame’s weight and preventing shifting during movement. They are made from various plastic composites, such as acetate, rubber, or nylon-based materials, which offer a balance between flexibility and grip. For frames with metal temples, the tip acts as a comfortable covering to prevent the metal from rubbing against the skin. A well-fitted temple tip ensures the glasses remain securely in place, working with the nose pads to maintain the frame’s alignment.