Which of the following will see images greener compared to a normal trichromat?

The choice of a protanomalous trichromat as the correct answer is based on how this condition impacts color perception, specifically in relation to the sensitivity of photoreceptors in the retina. Protanomalous trichromacy involves a shift in the sensitivity of the long-wavelength cone photopigments, which are primarily responsible for detecting red light.

In protanomalous individuals, there is a reduced sensitivity to red light, which causes a relative increase in the perception of green light when compared to normal trichromats. This means that they can perceive certain colors differently, often experiencing them as more greenish. The abnormality shifts their color perception, making greens and yellows appear more pronounced or vivid than they would for a person with normal color vision.

Understanding the differences between other options involves recognizing the specific color perception alterations associated with each condition:

• Deuteranomalous trichromacy, while also a form of anomalous trichromacy, affects the medium-wavelength cones but tends to lead to a more red-tinged perception rather than a greener one.

• Tritanomalous trichromacy involves a deficiency in the short-wavelength cones, affecting blue-yellow distinction but does not