Tinted glasses worn to protect the eyes from the sun.
(colloquial) A person wearing sunglasses
spectacles that are darkened or polarized to protect the eyes from the glare of the sun;
‘he was wearing a pair of mirrored shades’;
Sunglasses or sun glasses (informally called shades or sunnies; more names below) 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.