Scotopic vision is experienced in

• A. Bright Daylight
• B. Moderate Daylight
• C. Twilight
• D. Low Light Environments

Answer: (D)

Scotopic vision refers to seeing in low-light conditions using the rod photoreceptors. Rods are extremely sensitive to light, so they can detect shapes and movement even when illumination is minimal, but they don’t detect color and provide limited sharpness. In bright daylight, vision relies on cones, which give color and fine detail (photopic vision). In twilight, both rods and cones contribute, so vision is mesopic with reduced color and acuity. Therefore, scotopic vision is experienced in low light environments where rods dominate.