Final answer:
Low-quality lighting can cause eye strain, headaches, disrupted sleep patterns, and reduced productivity due to the impact on circadian rhythms and cognitive function.
Step-by-step explanation:
The consequences of low-quality light can include a range of effects on both physical and mental health. Exposure to poor lighting can lead to eye strain, which is often accompanied by symptoms such as difficulty focusing, aching or burning eyes, and fatigue, particularly after intensive concentration on close work. This can progress to headaches and has been associated with conditions like hyperopia, or farsightedness, where close objects appear blurry. Furthermore, low-quality light, especially blue light exposure from screens, can disrupt circadian rhythms and lead to disrupted sleep patterns, which have been linked to a variety of health concerns, including sleep debt, depression, and anxiety. Finally, these symptoms can contribute to a decrease in productivity, due to reduced mental alertness and cognitive functions essential for learning and work efficiency.