Yellow-blue dichromacy is a type of color vision deficiency where a person has difficulty differentiating between yellow and blue colors. There are different terms associated with this condition, including tritanopia, tritanomaly, and blue-yellow color blindness. Tritanopia refers to complete loss of blue-yellow color vision, while tritanomaly is a milder form where the individual can see some blue-yellow hues but with decreased sensitivity. Blue-yellow color blindness is another term used to describe yellow-blue dichromacy, whereby individuals have difficulty distinguishing between colors in the blue-yellow spectrum. Understanding these different terms can help individuals with yellow-blue dichromacy communicate their condition to others and seek appropriate management.