What aspect of vision is notably affected in scotopic conditions?

In scotopic conditions, which refer to low-light environments, the aspect of vision that is notably affected is color perception. During such conditions, the human visual system relies predominantly on rod photoreceptors in the retina. Rods are more sensitive to light but do not provide the ability to perceive color. Instead, they are responsible for detecting light intensity and motion under dim lighting.

In low-light conditions, individuals typically experience a loss of color vision, seeing scenes in shades of gray rather than in vibrant colors. This occurs because the cone photoreceptors, which are responsible for color detection and operate best in well-lit conditions, are less effective in dim lighting. Consequently, one would find that while aspects like movement detection and visual acuity can be maintained to some extent, the perception of color is largely diminished, making it the primary aspect affected in scotopic vision.