Sunglasses are not just a fashion accessory; they also serve a vital role in protecting our eyes from harmful UV rays and reducing glare. Understanding the various parts and terminologies associated with sunglasses will help you make an informed decision when purchasing a pair. In this article, we will delve into the complete list of sunglasses parts, along with explanations of their functions and importance.


Frames are the foundation of any pair of sunglasses. They come in various materials such as plastic, metal, or acetate. Frames support the lenses and keep them in place on your face. Additionally, the design and style of the frames contribute to the overall aesthetic appeal of the sunglasses.


Lenses are the most critical component of sunglasses as they protect your eyes from harmful ultraviolet (UV) rays. There are different types of lenses available, including:

  • UV Protection: High-quality sunglasses have lenses that block 100% of both UVA and UVB rays, safeguarding your eyes from sun-related damage.
  • Polarized: Polarized lenses reduce glare caused by light reflecting off surfaces like water, snow, or roads, enhancing visual clarity and comfort.
  • Mirrored: Mirrored lenses reduce glare even further by reflecting light away from the eyes. They also add a stylish and futuristic look to your sunglasses.
  • Gradient: Gradient lenses are darker on top and gradually become lighter towards the bottom. They are ideal for driving, as they shield your eyes from overhead sunlight while allowing clearer vision of the dashboard.


The bridge is the part of the frame that rests on your nose. It plays a crucial role in determining the fit and comfort of the sunglasses. Some sunglasses have adjustable nose pads to ensure a customized fit.

Temples (Arms)

The temples, also known as arms, are the parts that extend from the sides of the frames and go over your ears. They provide stability and keep the sunglasses securely in place on your face.


Hinges connect the temples to the frames and allow the sunglasses to fold or open. High-quality hinges ensure durability and smooth movement.

End Pieces

End pieces are located on each side of the bridge, where the frame connects to the temples. They play a role in the overall stability and comfort of the sunglasses.

Temple Tips

The temple tips are the ends of the temples that rest behind your ears. They often have plastic coatings for added comfort and to prevent slipping.

Lens Coatings

Lens coatings offer additional benefits to sunglasses:

  • Anti-Reflective (AR) Coating: AR coating reduces glare and reflections on the backside of the lenses, providing better visual clarity.
  • Scratch-Resistant Coating: This coating helps protect the lenses from scratches, ensuring longevity.

Brow Bar

The brow bar is a small, horizontal bar that connects the upper part of the two lenses. It is a popular style element in aviator sunglasses.

Nose Pads

Nose pads are found on the bridge and help distribute the weight of the sunglasses evenly on your nose. Adjustable nose pads offer a customizable fit.

Understanding the different parts and terminologies associated with sunglasses empowers you to choose a pair that not only complements your style but also provides optimum eye protection and comfort. Whether it's the lenses, frames, or various coatings, each component contributes to the overall functionality and aesthetic appeal of your sunglasses. So, the next time you shop for sunglasses, you can make an informed decision and enjoy the sun safely and stylishly.

Further reading: Sunglasses FAQs.

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