The blue light emitted by digital screens is a significant concern. Computers, laptops, tablets and smartphones can emit blue light, which is a high-energy, short-wavelength light that can have potential effects on our health and well-being.
Excessive exposure to blue light from computer screens, especially during prolonged use or in the evening and nighttime hours, can disrupt our sleep patterns and circadian rhythm. It can suppress the production of melatonin, a hormone that regulates our sleep-wake cycle, making it harder to fall asleep and affecting the overall quality of our sleep.
Moreover, long-term exposure to blue light may contribute to digital eye strain or computer vision syndrome (CVS). Symptoms of CVS include eye fatigue, dryness, redness, blurred vision, headaches, and neck and shoulder pain. Blue light exposure can also impact visual comfort and clarity, making it harder to focus on the screen for extended periods.