What is "shutter shades"

n. A style of sunglasses which have frames containing horizontal slats as opposed to tinted lenses.

Shutter Shades, also known as slatted shades or Venetian Blind shades are louvered sunglasses. A design of louvered sunglasses was released in America in the 1950s, and a modernized design in the early 1980s. The 1980s design became a popular youth fashion trend.

Instead of having lenses, the design is characterized by its " shutter" motif, which is part of the frame. The shades are marketed as suitable for both men and women and are available in an assortment of styles and colors. Depending on the design, Shutter Shades may not function as sunglasses; although some models contain UV resistant lenses, many do not, and only feature a series of horizontal plastic "shades," which neither provide protection for the eye from UV light nor prevent a substantial amount of light from entering the eye.