Color Vision Deficiency (CVD), commonly known as color blindness, is a condition that makes it difficult for individuals to distinguish between certain colors—most often reds, greens, blues, and yellows. Contrary to popular belief, true color blindness, where a person sees only in black and white, is extremely rare.
There are four primary types of color vision deficiency:
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Deuteranomalia: The most common form, where reds and greens appear dull or faded.
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Protanopia: Red and green tones lose their brightness, making them harder to distinguish.
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Tritanopia: A rare condition affecting blue and yellow perception.
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Total Color Blindness (Monochromacy): An exceptionally rare form where all colors are perceived as shades of gray.
Most people discover their color vision deficiency during everyday tasks—such as struggling with traffic lights, selecting matching clothes, or identifying color-coded items. While there’s currently no cure, many adapt using visual cues or assistive technologies, such as color-identifying apps or specially tinted lenses.
