You are exposed to blue light from the device when you stare at a screen for hours at a time, whether it is a computer, TV, phone, or tablet. According to alarmist headlines, blue light from excessive screen time is blinding us. However, there is no scientific evidence that blue light from digital devices causes eye damage.
Why Do My Eyes Hurt When Starting At A Screen?
Digital eye strain is most likely to blame for the discomfort some people experience after looking at screens. According to Dr Anchal Gupta, Senior Eye Surgeon at Netram Eye Centre, most of us blink less when looking at screens, causing eye strain and dry eyes. The good news is that eye strain does not cause long-term damage and is easily avoided.
The best way to avoid eye strain is to take regular breaks and follow the “20-20-20” rule: every 20 minutes, shift your gaze to an object at least 20 feet away for at least 20 seconds. When your eyes feel dry, you can use artificial tears/lubricating eye drops to refresh them.
Blue Light Keeps You From Falling Asleep
Blue light has an effect on the body’s circadian rhythm, which governs our natural wake and sleep cycles. Blue light awakens and stimulates us during the day. However, too much blue light exposure late at night from your phone, tablet, or computer can make falling asleep difficult.
That is why Dr. Anchal advises you to limit your screen time two to three hours before going to bed. You can also experiment with nighttime settings on your devices to reduce blue light exposure in the evening.