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 … See more

Visual clarity and comfort
Sunglasses can improve visual comfort and visual clarity by protecting the eye from See more

Land vehicle driving
When driving a vehicle, particularly at high speed, dazzling glare caused by a low Sun, or by lights reflecting off snow, puddles, other vehicles, or even the front of the vehicle, can be lethal. Sunglasses can protect against … See more

The following types are not all mutually exclusive; glasses may be in Aviator style with mirrored lenses, for example.
Aviator See more

First precursors
Since the 13th century and until the spread of contemporary UV-shielding spectacles against snowblindness, Inuit made and wore See more

The international standard for sunglasses is ISO 12312. It is divided into three parts, the first of them, about "Sunglasses for general use", was … See more

Lens
The color of the lens can vary depending on style, fashion, and purpose, but for general use, red, … See more