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Woman trying on blue light glasses. Even people who don't need eyeglasses for vision issues are donning specs these days. While some may be using non-prescription glasses as a fashion statement ...
Sellers of the glasses, which come in prescription and non-prescription varieties, claim they help keep the eyes healthy, reduce eye strain, improve visual performance, and even help people fall ...
Experts say there are ways to improve visual comfort without the glasses: Vary the types of things you are focusing on, or your field of vision. Looking at a computer all day only engages a ...
Color blindness (color vision deficiency) is the decreased ability to see color or differences in color. It can impair daily color tasks such as selecting ripe fruit or choosing clothing, as well as safety-related tasks such as interpreting traffic lights. While the disability of color blindness is considered minor, the use of color in safety ...
A monocle is a type of corrective lens used to correct or enhance the visual perception in only one eye. It consists of a circular lens placed in front of the eye and held in place by the eye socket itself. Often, to avoid losing the monocle, a string or wire is connected to the wearer's clothing at one end and, at the other end, to either a ...
The first major-league player to wear spectacles was Will 'Whoop-La' White in 1878–86. Only pitchers dared wear glasses while playing until the early 1920s, when George 'Specs' Toporcer of the St. Louis Cardinals became the first outfielder to sport eyewear. Bespectacled pitchers are less rare as they have less need to field the ball.
X-ray specs. X-ray specs or X-ray glasses are an American novelty item, purported to allow users to see through or into solid objects. In reality, the spectacles merely create an optical illusion; no X-rays are involved. The current paper version is sold under the name "X-Ray Spex"; a similar product is sold under the name "X-Ray Gogs".
Pinhole glasses, also known as stenopeic glasses, are eyeglasses with a series of pinhole-sized perforations filling an opaque sheet of plastic in place of each lens. Similar to the workings of a pinhole camera , each perforation allows only a very narrow beam of light to enter the eye which reduces the size of the circle of confusion on the ...