Quality of Night Vision
An evaluation of clarity and comfort in low-light settings. Cataracts or dry eye often reduce night vision.
Quadrantanopia
Loss of vision in one quarter of the visual field.
Quality of Vision
Quality of vision refers not just to sharpness on a chart, but to how comfortably and clearly someone sees in real-life situations such as night driving or low light. Modern assessments consider clarity, contrast and visual comfort.