The Ritual of Eye Black
When you watch a baseball game, the most striking visual cue on a player's face is often a dark stripe running beneath the eyes. Known as eye black, this simple application has been part of the sport for more than a century.
Players spread a greasy substance or stick on a sticker beneath their eyes, hoping the black pigment will absorb stray sunlight and stadium floodlights, thereby sharpening their view of the ball.
The scientific community has examined the claim for decades, and the results are mixed. Some laboratory tests suggest a modest improvement in contrast sensitivity, while others find little to no effect, leaving the practical benefit open to interpretation.
Beyond the potential visual edge, eye black carries a cultural weight. Legendary slugger Babe Ruth is often cited as one of the early adopters, and his habit helped cement the practice within baseball lore. Today, athletes may add personal messages or team logos to the blackened surface, turning a functional tool into a statement of identity.
Glare is not unique to baseball; competitors in sports ranging from football to skiing employ hats, sunglasses, or tinted visors for similar reasons. Yet the tradition of eye black persists, especially in outdoor venues where the sun can swing unpredictably, from the bright fields of Miami to the cooler evenings in Edmonton.