Eye black
Encyclopedia
Human eye
The human eye is an organ which reacts to light for several purposes. As a conscious sense organ, the eye allows vision. Rod and cone cells in the retina allow conscious light perception and vision including color differentiation and the perception of depth...
s to reduce glare. It is often used by baseball
Baseball
Baseball is a bat-and-ball sport played between two teams of nine players each. The aim is to score runs by hitting a thrown ball with a bat and touching a series of four bases arranged at the corners of a ninety-foot diamond...
and American football
American football
American football is a sport played between two teams of eleven with the objective of scoring points by advancing the ball into the opposing team's end zone. Known in the United States simply as football, it may also be referred to informally as gridiron football. The ball can be advanced by...
players, where sunlight or stadium lights can impair vision of an airborne ball. Eye black has been used for centuries to help reduce the glare of the sun.
Traditional grease consists of beeswax
Beeswax
Beeswax is a natural wax produced in the bee hive of honey bees of the genus Apis. It is mainly esters of fatty acids and various long chain alcohols...
, paraffin
Paraffin
In chemistry, paraffin is a term that can be used synonymously with "alkane", indicating hydrocarbons with the general formula CnH2n+2. Paraffin wax refers to a mixture of alkanes that falls within the 20 ≤ n ≤ 40 range; they are found in the solid state at room temperature and begin to enter the...
, and carbon
Carbon
Carbon is the chemical element with symbol C and atomic number 6. As a member of group 14 on the periodic table, it is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds...
. Anti-glare face stripes that emulate the grease are also commonly used. One of the earliest known instances of a player wearing eye black is baseball legend Babe Ruth
Babe Ruth
George Herman Ruth, Jr. , best known as "Babe" Ruth and nicknamed "the Bambino" and "the Sultan of Swat", was an American Major League baseball player from 1914–1935...
, who, in or around the 1930s, used the grease in an attempt to reduce sun glare. According to Paul Lukas of ESPN.com
ESPN.com
ESPN.com is the official website of ESPN and a division of ESPN Inc. Since launching in 1995 as ESPNet.SportsZone.com, the website has developed numerous sections including: Page 2, SportsNation, ESPN 3.com, ESPN Motion, My ESPN, ESPN Sports Travel, ESPN Video Games, ESPN Insider, ESPN.com's...
, eye black caught on with American football
American football
American football is a sport played between two teams of eleven with the objective of scoring points by advancing the ball into the opposing team's end zone. Known in the United States simply as football, it may also be referred to informally as gridiron football. The ball can be advanced by...
player Andy Farkas
Andy Farkas
Andrew Geza Farkas was an American football fullback in the National Football League for the Washington Redskins and the Detroit Lions.-Early life:Farkas was born in Clay Center, Ohio of Hungarian origins, and attended St...
. He also states that the original eye black was made from burned cork ashes.
A 2003 study by Brian DeBroff and Patricia Pahk tested whether black eye grease actually had anti-glare properties. The subjects of the study were divided into three groups: wearers of eye black, wearers of anti-glare stickers, and wearers of petroleum jelly
Petroleum jelly
Petroleum jelly, petrolatum, white petrolatum or soft paraffin, CAS number 8009-03-8, is a semi-solid mixture of hydrocarbons , originally promoted as a topical ointment for its healing properties...
. The subjects' vision was tested using an eye chart
Eye chart
An eye chart is a chart used to measure visual acuity. Types of eye charts include the logMAR chart, Snellen chart, Landolt C, and the Lea test.-Procedure:Charts usually display several rows of optotypes , each row in a different size...
while being exposed to natural sunlight. The study concluded that eye black reduced glare of the sun and improved contrast
Contrast (vision)
Contrast is the difference in visual properties that makes an object distinguishable from other objects and the background. In visual perception of the real world, contrast is determined by the difference in the color and brightness of the object and other objects within the same field of view...
sensitivity, whereas commercial anti-glare stickers and petroleum jelly (the control substance) were found to be ineffective. A further study which set to improve DeBroff's methodology also found eye black to reduce glare from the sun, but less so in blue-eyed individuals and males.
Some athletes, particularly at the college level, began a practice of placing short messages or Bible verse references on their eye black, most notably Tim Tebow
Tim Tebow
Timothy Richard "Tim" Tebow is an American football player who is currently the starting quarterback for the Denver Broncos of the National Football League . He was drafted by the Broncos as the 25th overall pick in the 2010 NFL Draft...
. On April 14, 2010, the NCAA Playing Rules Oversight Panel (PROP) approved a proposal effecting "that players are not allowed to have any symbols or messages on their eye black starting in the 2010 season."