Sunglasses (also called sun glasses or dark glasses) are a type of eyewear used to block strong light, reduce glare, and protect the eyes from ultraviolet (UV) damage.
Key Points of Definition
Main Use: To block uncomfortable strong light and protect the eyes from ultraviolet (UVA/UVB) damage.
Are They the Same as "Dark Glasses"?
In a broad sense, they are often used interchangeably, but strictly speaking:
Sunglasses are functional protective eyewear that must meet standards such as UV protection;
Dark glasses focus more on dark lens colors (like black or gray), some are purely decorative, and may not provide UV protection.
