Explore the question in detail with explanation, related questions, and community discussions.
Color blindness, also known as color vision deficiency (CVD), is a condition in which a person has difficulty distinguishing between certain colors. The most common form is red-green color blindness, where affected individuals cannot correctly perceive the difference between shades of red and green.
This condition is usually caused by a defect in the cone cells of the retina. Human eyes contain three types of cone cells that detect different wavelengths of light corresponding to red, green, and blue. When one type of cone cell is absent or malfunctioning, it leads to difficulty in distinguishing certain colors. In red-green color blindness, either the red cones (protanopia) or green cones (deuteranopia) are defective.
Genetic Inheritance: Most cases are inherited and are linked to the X chromosome. Since males have only one X chromosome, they are more likely to be color-blind compared to females.
Eye Diseases: Conditions like glaucoma, cataracts, or macular degeneration may lead to acquired color vision deficiency.
Nerve or Brain Damage: Damage to the optic nerve or brain regions responsible for vision can also affect color perception.
Aging and Certain Medications: Some medicines may alter color vision temporarily.
Red-Green (Most Common): Protanopia, Deuteranopia
Blue-Yellow: Tritanopia (rare)
Complete Color Blindness (Monochromacy): Very rare; person sees only shades of grey.
White & Yellow (Option A): Rarely confused, even in color-blind individuals.
Red & Black (Option C): Not typically confused, since brightness difference is noticeable.
Green & Black (Option D): Also not confused due to contrast difference.
👉 Hence, the correct answer is Red & Green (Option B), as it represents the most widespread form of color blindness
Discussion
Leave a Comment