| Sunglasses or sun glasses are a visual
aid, variously termed spectacles or glasses, which feature lenses that
are coloured or darkened to prevent strong light from reaching the eyes.
In the early Twentieth century they were also known as sun cheaters (or
simply cheaters).
Many people find direct sunlight too
bright to be comfortable. During outdoor activities, the human eye can
receive more light than usual. Healthcare professionals recommend eye protection
whenever outside to protect the eyes from ultraviolet radiation, which
can lead to the development of a cataract. Sunglasses have long been associated
with celebrities and film actors primarily from a desire to hide or mask
their identity. Since the 1940s sunglasses have been popular as a fashion
accessory, especially on the beach. |
