Sunglasses or sun glasses are a kind of protective eyewear designed predominantly to eliminate vivid sunrays and also light from detrimental or discomforting the eyes. They are able to often also work as a visual assist, as variously described spectacles or glasses exist, spotlighting lenses that are colored, polarised or darkened. In the early 20th century they were additionally understood as sunlight cheaters (cheaters being an American slang expression for glasses).

Many individuals identify direct sunlight too rich for luxury in the course of yard tasks. Healthcare experts advise eye safeguards whenever the sunlight comes out to guard the eyes from ultraviolet radiation (UV) as well as blue light, which should cause many significant eye problems. Sunglasses have indeed long been associated with celebrities and film entertainers largely from a wish to mask their identity. Because the 1940s sunglasses have indeed been popular as a trend accessory, specifically on the seaside.