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Red eyes
Redness of the white part of the eye, which can be caused by irritation, infection, or other eye conditions.
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You know the feeling. After a long day on screens, your eyes feel tired, dry or slightly blurred. This is often referred to as digital eye strain (DES), a form of eye strain linked to prolonged screen use and close-up tasks.
In today’s world, screens are part of everyday life. Whether you are working on a computer, scrolling on your phone or watching television, your eyes are constantly focusing at close distances. Over time, this can lead to discomfort and fatigue.
The good news is that eye strain, also known as asthenopia, is very common and, in most cases, can be managed with simple changes and the right support.
If your symptoms are linked to brightness or contrast, it may also be helpful to explore how tinted lenses can support everyday visual comfort.
What is digital eye strain?
Digital eye strain is a type of eye strain linked specifically to screen use. It occurs when your eyes work harder than usual for extended periods, particularly when focusing on a fixed point such as a screen.
When using digital devices, we tend to blink less often, which can cause the eyes to become dry and irritated. At the same time, the focusing muscles in the eye remain fixed at a close distance, leading to fatigue.
Over time, this combination can make your vision feel uncomfortable and strained.
Digital eye strain vs eye strain: what’s the difference?
Digital eye strain is a type of eye strain caused specifically by prolonged screen use, while eye strain is a broader term for discomfort or fatigue in the eyes from any kind of intense visual activity. Although the symptoms can feel similar, the difference lies in the cause and how your eyes are being used.
Key differences at a glance
Digital eye strain |
Eye strain |
| Caused by screens (computers, phones, tablets) | Caused by any prolonged visual task |
| Linked to reduced blinking and screen glare | Linked to overall visual fatigue |
| Focus at a fixed, close distance | Can occur at any distance (reading, driving, etc.) |
| Often worsens after extended screen time | Can occur with any sustained effort |
| May involve dryness from reduced blinking | May involve general tiredness and discomfort |
In practice, the symptoms can feel very similar, tired eyes, blurred vision, headaches and difficulty focusing. The difference is usually in the cause rather than the symptoms.
How to tell which one you may have
If your symptoms are mainly linked to screen use, such as working on a computer or using your phone for long periods, you are more likely experiencing digital eye strain.
If your discomfort occurs more broadly, for example when reading, driving or focusing for long periods, it is more likely to be general eye strain.
Some people experience a combination of both, particularly if their daily routine includes a mix of screen use and other visually demanding tasks.
What to do next
Understanding the difference can help you choose the right support.
- For screen-related discomfort, small changes such as regular breaks and reducing glare can help.
- For broader visual fatigue, it may be worth reviewing your visual habits or checking your prescription.
What are the symptoms of eye strain?
Eye strain can affect people in different ways, depending on how your eyes are being used.
Common symptoms include:
- Tired, sore or uncomfortable eyes
- Dry or watery eyes
- Redness or irritation
- Blurred or fluctuating vision
- Difficulty focusing
- Headaches
- Light sensitivity
- Occasional dizziness or visual discomfort
If you experience sensitivity to brightness alongside these symptoms, it may be helpful to explore photophobia (light sensitivity) or visual stress, where contrast and glare can make focusing more difficult.
What causes eye strain?
Eye strain is usually caused by intense or prolonged use of your eyes without enough breaks.
Common causes include:
- Extended screen use (computers, phones, tablets)
- Reading or close work for long periods
- Driving for long distances
- Exposure to glare or bright lighting
- Working in poor lighting conditions
- Stress and fatigue
In many cases, eye strain is caused by a combination of factors rather than a single issue.
Eye strain and age
For adults aged around 40 and over, eye strain can sometimes be linked to presbyopia, a natural change in the eye where focusing on near objects becomes more difficult.
If you find yourself holding reading material further away, struggling to focus up close, or experiencing headaches alongside eye strain, it may be time to have your eyes tested.
Eye strain can affect anyone, at any age. With increased screen use and longer periods of close work, children are also experiencing symptoms more frequently. If your child is struggling with reading, concentration or visual discomfort, an eye examination can help identify any underlying issues and provide reassurance.
How to relieve digital eye strain
Small changes can make a meaningful difference to how your eyes feel throughout the day.
One of the simplest techniques is the 20-20-20 rule: every 20 minutes, take a 20-second break and look at something around 20 feet away. This allows your eyes to relax and reset their focus.
Other helpful habits include:
- Blinking more regularly to keep your eyes hydrated
- Taking regular breaks from screens
- Staying well hydrated
- Ensuring you get enough rest
Adjusting your environment can also help. Reducing glare, improving lighting and setting up your workstation correctly can all ease the strain on your eyes.
Understanding the role of dry eye
When using digital devices, we naturally blink less often, which can lead to dryness and discomfort. Over time, this can make your eyes feel tired, irritated or more sensitive to light.
If your prescription is up to date and your symptoms continue, dry eye may be a contributing factor to your digital eye strain.
At Leightons, we take the time to understand what is affecting your eyes. A detailed dry eye assessment allows us to look more closely at the health of your tear film and identify the underlying causes of your symptoms. From there, we can guide you towards a management approach tailored to your needs.
Book your dry eye assessment and take the first step towards more comfortable, supported vision.
Do glasses help with eye strain?
In some cases, glasses can make a noticeable difference.
If your prescription needs updating, even small changes can improve how your eyes focus and reduce strain. For those who spend long periods on screens, lenses designed for computer use may support more comfortable focusing.
Lenses with anti-reflective coatings can also reduce glare from screens and artificial lighting.
While blue light lenses are often discussed, their main benefit is reducing glare rather than preventing eye strain. If your symptoms are linked more broadly to brightness or contrast, some people may benefit from tinted lenses, particularly when tailored to individual comfort.
Compare blue light vs tinted lenses to understand which option may suit your needs.
When to seek advice
Eye strain is usually not serious, but it is important to understand what is causing your symptoms.
If your discomfort does not improve with simple changes, or if you are experiencing persistent headaches, blurred vision or changes in your sight, it is worth having your eyes examined.
A comprehensive eye test allows us to assess your vision, check for underlying eye conditions, and ensure your eyes are working as comfortably as possible.
Takeaway
Eye strain and digital eye strain are common in everyday life, particularly with regular screen use. While the symptoms can feel uncomfortable, they are often manageable with small changes and the right support.
At Leightons, we take the time to understand how you use your eyes and what may be contributing to your symptoms. From a comprehensive eye examination to tailored lens recommendations, we can help you find ways to reduce strain and feel more comfortable throughout your day.
