A visor or brimmed covering worn on the forehead to shield the eyes from bright light or glare.
Compound of 'eye' and 'shade' (from Old English 'sceadu'). Practical garment term dating to the 19th century, especially associated with accountants and journalists.
The green eyeshade became the symbol of 1920s newspaper reporters and accountants—they'd wear them under indoor gas and electric lights to reduce glare on their work, creating an iconic look.
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