Which of the following is NOT a misconception about color deficiency?

The selected answer highlights a significant misconception about color deficiency. Many people believe that color deficiency can be corrected or improved through specific training practices, but this is not the case. Color vision deficiencies primarily arise from genetic factors that affect the photopigments in the retina responsible for color perception. While some strategies and tools, such as special lenses or filters, can assist individuals in distinguishing colors better in certain conditions, they do not cure the underlying deficiency. Therefore, asserting that training can correct color deficiency is indeed a misconception.

In contrast, the other statements address aspects of color deficiency that are more aligned with established understanding. For example, there is no direct relationship between color vision deficiencies and night blindness, as these conditions stem from different biological processes. Similarly, visual acuity, which measures the clarity or sharpness of vision, does not inherently correlate with color deficiency; many individuals with color deficiencies have normal visual acuity. Lastly, color deficiencies are generally considered lifelong conditions that cannot be cured, reinforcing the view that these features represent common misconceptions rather than factual statements.