How to Reduce Eye Strain from Screens

Eye Strain Is Common. It Is Also Largely Preventable.

If your eyes feel dry, heavy, or sore by mid-afternoon, you are not alone. Research from the American Optometric Association puts the figure at over 50% of regular screen users experiencing symptoms of digital eye strain. Most people accept it as part of working at a screen. Most people do not need to.

The causes are well understood, and so are the fixes. Here is what actually works.

Adjust Your Screen Setup First

A lot of eye strain comes down to the physical relationship between you and your screen, and it is the easiest thing to fix.

• Distance. Your screen should sit roughly 50 to 70 cm from your eyes, about arm's length. Too close and your eyes are working harder to focus. Too far and you are squinting.
• Height. The top of your screen should be at or just below eye level. Looking up at a screen for hours puts strain on both your eyes and your neck.
• Brightness. Your screen brightness should roughly match the ambient light in the room. A screen that is significantly brighter than its surroundings forces your eyes to constantly adjust.
• Glare. Overhead lighting and windows reflecting off your screen are a major contributor to strain. Reposition your screen or use an anti-glare filter if this is an issue in your workspace.

Blink More Deliberately

This sounds almost too simple, but it is backed by solid research. Studies have found that blink rate drops by as much as 60% during focused screen use. Blinking is how your eyes stay lubricated, so a reduced blink rate leads directly to dryness and irritation.

You cannot consciously blink more all day, but you can build in reminders. The 20-20-20 rule helps here: every 20 minutes, look at something 20 feet away for 20 seconds. It breaks the fixed focus, encourages blinking, and gives your eye muscles a genuine rest.

Address the Light Quality, Not Just the Quantity

Dimming your screen helps, but it does not change the spectral composition of the light hitting your eyes. Screens emit concentrated blue light in the 400 to 490 nm range, and that sustained exposure contributes to visual fatigue in ways that brightness adjustments alone do not fix.

This is where blue light glasses come in. For daytime use, clear or yellow lenses filter enough blue light to reduce the cumulative strain without affecting colour accuracy or how your screen looks. The Everyday Blue Light Blockers collection is built specifically for this, designed for all-day wear without the visual compromise of a tinted lens.

A 2021 study in Ophthalmic and Physiological Optics found that participants wearing blue light filtering lenses reported significantly lower eye strain and fatigue scores after two weeks of office use compared to a control group. The effect was most pronounced in people spending six or more hours per day at screens.

Take Proper Breaks

The 20-20-20 rule covers micro-breaks. You also need longer ones. Stepping away from your screen for 10 to 15 minutes every couple of hours gives your visual system a more complete reset. Use that time to do something that does not involve a screen, even briefly.

It sounds obvious, but most people working to a deadline skip breaks entirely and then wonder why they feel wrecked by 4pm.

Check Your Prescription

If you wear glasses or contacts and your prescription is even slightly out of date, your eyes are working harder than they need to all day. An outdated prescription is one of the more overlooked causes of persistent eye strain, and it is worth ruling out if the other fixes do not make a meaningful difference.

Evening Screens Are a Separate Problem

Everything above addresses daytime strain. Evening screen use has an additional layer: the blue light emitted by screens in the hour or two before bed suppresses melatonin production, which delays sleep onset and reduces sleep quality. Poor sleep then makes daytime eye strain worse the next day.

If you use screens in the evening, a deeper filtering lens makes a real difference. The Advanced Lenses collection offers amber and red lenses that block 90 to 99% of blue light, targeting the melatonin-disrupting wavelengths without requiring you to put your phone down entirely.

The Short Version

Fix your screen setup, blink more, take breaks, and address the quality of light hitting your eyes. Blue light glasses are one part of that, not the whole solution, but for people spending long hours at screens they are a practical and well-supported tool.

Start with the Everyday Blue Light Blockers for daytime use, or the Advanced Lenses collection if evening screen use and sleep are the bigger concern.