Screens are part of everyday life in Pakistan — work, study, social media and entertainment all happen on phones and computers. Blue light glasses are sold as a fix for tired eyes and screen-related headaches. But do they actually help? The short answer: they can help with comfort, but the evidence for their benefits is limited. Here is what we know.
What is blue light?
Blue light is part of the visible light spectrum, with wavelengths of about 380 to 500 nanometres. The sun is by far the biggest source of blue light — far more than any phone or computer screen. Blue light also plays a role in our body clock: it helps keep us alert during the day and affects the production of melatonin, the hormone that helps us sleep.
What is digital eye strain?
After long hours in front of a screen, many people notice tired, dry or sore eyes, headaches, and blurred vision. This is commonly called digital eye strain. Research points to several causes: we blink less when we concentrate on a screen, which dries the eyes; glare and poor lighting tire the eyes; poor posture adds neck and shoulder strain; and an uncorrected prescription makes the eyes work harder. Blue light itself is not the main cause of these symptoms.
What the research says
There is no strong evidence that the blue light from screens damages the retina or causes eye disease. The amount of blue light from a screen is small compared with daylight. Studies on blue light glasses have found mixed results: some people report less glare and more comfort, while other studies find little difference compared with ordinary glasses. There is some evidence that wearing blue light glasses in the evening may help sleep, because less blue light reaches the eyes before bed. Eye experts generally agree that blue light glasses are not a cure for eye strain, and they do not prevent eye disease — but they can make screen time feel more comfortable for some people.
Who might benefit?
- People who work long hours on a computer or phone.
- Students and gamers who spend evenings in front of a screen.
- Anyone who notices glare and eye tiredness from screens.
- People who use screens late at night and struggle to sleep.
If you do not notice any difference with blue light glasses, you may not need them — ordinary glasses with your correct prescription, plus good screen habits, may be enough.
What helps more than glasses
The most effective steps for screen-related eye strain are simple habits:
- The 20-20-20 rule: every 20 minutes, look at something about 20 feet (6 metres) away for 20 seconds.
- Blink often and keep your eyes moist; in air-conditioned rooms, eyes dry out faster.
- Match screen brightness to the room and reduce glare from windows and lights.
- Keep your screen at arm’s length and slightly below eye level.
- Take regular breaks away from the screen, and get your eyes tested — an out-of-date prescription is a common cause of strain.
Do blue light glasses replace an eye test?
No. If you get frequent headaches, blurred vision, eye pain, or your eyes feel worse despite breaks and good habits, see an optometrist for a full eye examination. Our free online eye test is only a basic screening — it cannot measure your prescription or diagnose eye problems.
Choosing blue light glasses
Blue light glasses are available as plain frames for screen use, or with your prescription lenses. Look for a comfortable, well-fitting frame that you can wear for hours, and lenses that do not change colours too much — a clear or lightly tinted lens is usually best for everyday screen work. Every Frame Aura frame comes with a 1-year warranty and a 7-day easy exchange.
Browse our blue light glasses, or send a consultation enquiry if you are not sure whether they are right for you.