
Sunglasses or sun glasses are a form of protective eyewear designed primarily to prevent bright sunlight and high-energy visible light from damaging or discomforting the eyes. They can sometimes also function as a visual aid, as variously termed spectacles or glasses exist, featuring lenses that are colored, polarized or darkened. In the early 20th century, they were also known as sun cheaters.

Aviator sunglasses are a style of sunglasses that were developed by a group of American firms. The original Bausch & Lomb design is now commercially marketed as Ray-Ban Aviators, although other manufacturers also produce aviator style sunglasses.

+Beryll is a luxury accessory company based in Los Angeles, California. They specialize in designer sunglasses and other lifestyle accessories such as clothes. It has a flagship store in Santa Monica, and is sold at approximately 500 other outlets.

Cazal is a luxury sunglass designer based in Germany which manufactures the Legends line of sunglasses, created by Austrian designer Cari Zalloni.

Costa Del Mar or simply Costa is an American manufacturer of polarized sunglasses based in Daytona Beach,Florida. It is a wholly owned subsidiary of EssilorLuxottica. Their sunglasses are popular in the sport sunglasses market, and are considered good for outdoor sports practicing, such as Summer activities, recreational fishing and boating. Costa's Baffin Sunglasses won Best of Show: Eyewear at ICAST 2018.

DITTO is a company that sells software that aids eyewear companies sell their products online using virtual fitting. Originally DITTO was a retailer that sold designer prescription eyeglasses and sunglasses. The company used virtual fitting technology to let customers try on frames from a computer. The technology measures a user’s face by homing in on pupils, ears, cheekbones, ears and other facial landmarks, and then came back with images of dozens of different pairs of glasses that might be a good fit.

Doggles are a commercial brand of eye protection for dogs in the form of tinted goggles designed and manufactured to fit the shape of a dog's head.
Eyewear consists of items and accessories worn on or over the eyes, for fashion or adornment, protection against the environment, and to improve or enhance visual acuity.

Gentle Monster styled as GENTLE MONSTER is a South Korean sunglasses and optical glasses brand founded by Hankook Kim in Seoul in 2011.

Hawkers is a Spanish brand based in Elche that sells sunglasses using the Internet as its distribution channel. Hawkers was founded in December 2013 by Iñaki Soriano, Pablo Sánchez and the brothers Alejandro and David Moreno. Hawkers is part of the Saldum Ventures group and its current President is Alejandro Betancourt.

Kaenon is a luxury performance eyewear brand based in Newport Beach, CA. The company was founded in 2001 by elite sailors, and brothers, Steve and Darren Rosenberg. Specializing in performance sunglasses, all Kaenon Polarized sunglasses feature the company's proprietary SR-91 polarized lens material.

Maui Jim is a sunglasses manufacturer based in Peoria, Illinois. The company was founded in Lahaina, Hawaii, in 1980.

Mirrored sunglasses are sunglasses with a reflective optical coating on the outside of the lenses to make them appear like small mirrors. The lenses typically give the wearer's vision a brown or grey tint. The mirror coating decreases the amount of light passing through the tinted lens by a further 10–60%, making it especially useful for conditions of sand, water, snow, and higher altitudes. Mirrored sunglasses are one-way mirrors.

Oakley, Inc., based in Lake Forest, California, operates as a subsidiary of EssilorLuxottica based in Paris. The company designs, develops and manufactures sports performance equipment and lifestyle pieces including sunglasses, sports visors, ski/snowboard goggles, watches, apparel, backpacks, shoes, optical frames, and other accessories. Most items are designed in house at their head office, but some countries hold exclusive designs relevant to their market. Oakley currently holds more than 600 patents for eyewear, materials, and performance gear.

Ray-Ban is a brand of luxury sunglasses and eyeglasses created in 1936 by Bausch & Lomb. The brand is known for its Wayfarer and Aviator lines of sunglasses. In 1999, Bausch & Lomb sold the brand to the Italian eyewear conglomerate, Luxottica Group, for a reported US $640 million.

Browline glasses are a style of eyeglass frames where the "bold" upper part holding the lenses resembles eyebrows framing the eyes. They were very popular during the 1950s and 1960s, especially in the United States of America. The glasses were first manufactured by Shuron Ltd in 1947 under the "Ronsir" brand, and quickly emulated by various other manufacturers. The design became the most common style of eyeglasses throughout the 1950s and the early 1960s before it was surpassed in popularity by solid plastic styles. Browlines enjoyed a renaissance as sunglasses in the 1980s before returning to popularity in the 2010s, with the rise of retro style and the hipster subculture.
Ray-Ban Wayfarer sunglasses have been manufactured by Ray-Ban since 1956, which in turn has belonged to the Italian Luxottica Group since 1999. Wayfarers enjoyed early popularity in the 1950s and 1960s, returning to popularity again after a 1982 product placement. A second revival occurred in the mid-2000s.

Shutter shades, also known as slatted shades, louvered shades, or Venetian blind shades are sunglasses that, instead of having darkened lenses, have horizontal slats similar to window shutters, which are an integral part of the frame.