Inuit snow goggles
Encyclopedia
Snow goggles are a type of eyewear traditionally used by the Inuit
Inuit
The Inuit are a group of culturally similar indigenous peoples inhabiting the Arctic regions of Canada , Denmark , Russia and the United States . Inuit means “the people” in the Inuktitut language...

 people of the Arctic
Arctic
The Arctic is a region located at the northern-most part of the Earth. The Arctic consists of the Arctic Ocean and parts of Canada, Russia, Greenland, the United States, Norway, Sweden, Finland, and Iceland. The Arctic region consists of a vast, ice-covered ocean, surrounded by treeless permafrost...

 to prevent snow blindness
Snow blindness
Photokeratitis or ultraviolet keratitis is a painful eye condition caused by exposure of insufficiently protected eyes to the ultraviolet rays from either natural or artificial sources. Photokeratitis is akin to a sunburn of the cornea and conjunctiva, and is not usually noticed until several...

. The goggles
Goggles
Goggles or safety glasses are forms of protective eyewear that usually enclose or protect the area surrounding the eye in order to prevent particulates, water or chemicals from striking the eyes. They are used in chemistry laboratories and in woodworking. They are often used in snow sports as well,...

 are traditionally made of a piece of bone or ivory pierced with slits but new ones may be made with wood.

The goggles fit tightly against the face so that the only light entering is through the slits. Soot was sometimes used on the inside to help cut down on glare. The slit is made narrow not only to reduce the amount of light entering but also to improve the visual acuity
Visual acuity
Visual acuity is acuteness or clearness of vision, which is dependent on the sharpness of the retinal focus within the eye and the sensitivity of the interpretative faculty of the brain....

. The greater the width of the slits the larger the field of view
Field of view
The field of view is the extent of the observable world that is seen at any given moment....

.

Popular Culture

The DC Comics supervillan Captain Cold
Captain Cold
Captain Cold, real name Leonard Snart, is a comic book villain created by John Broome and Carmine Infantino as one of the archenemies of Flash. He is a leader of the Rogues...

wears a pair of protective glasses modeled after Inuit snow goggles. He does so in order to protect his eyes from the glare of the ice he creates via his Cold Gun.
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