Which color vision deficiency would be affected negatively by peaks near 495 nm?

The color vision deficiency that would be negatively affected by peaks near 495 nm is associated with Tritanopes. Tritanopia is a type of color vision deficiency caused by the absence of blue photopigments, which are sensitive to light wavelengths around 440-490 nm. The peak sensitivity near 495 nm corresponds closely with the range of wavelengths where blue light is classified.

Tritanopes struggle to perceive blue and yellow hues effectively because their blue-sensitive cones are either missing or non-functional. The presence of peaks in light sensitivity around 495 nm can exacerbate the challenges faced by individuals with Tritanopia. They may experience difficulties distinguishing between colors that are more influenced by the wavelengths near this peak, further disrupting their ability to see and differentiate blue from yellow.

In contrast, Protanopes and Deuteranopes, who have deficiencies in red and green color vision respectively, would primarily be affected by wavelengths pertaining to red and green light sensitivity. Monochromats, lacking all three types of cones, would not specifically be impacted by these peaks as their color perception is entirely different, relying solely on the intensity of light rather than color discrimination. Thus, Tritanopes are distinctly impacted by the specific wavelengths mentioned in the question.