Color Vision Deficiency (CVD) is a condition where individuals have difficulty distinguishing between certain colors. The most common type is red-green color blindness, which affects the perception of red and green hues. This condition occurs due to the absence or malfunction of specific color-sensitive cells in the retina of the eye. CVD can be inherited or acquired through various factors, such as aging or eye diseases. It affects approximately 1 in 12 men and 1 in 200 women, making it more prevalent in males. While there is no cure, many people adapt by using tools and strategies to help them navigate their color-related challenges.