
Digital screens have become an unavoidable part of everyday life, but too much screen time can negatively impact your eye comfort and visual performance. Extended use of computers, tablets, and smartphones can lead to eye strain, headaches, and blurred vision. Learning how screen time affects your eyes can help you maintain healthy vision in an increasingly digital world.
Most adults spend 7-10 hours per day looking at digital screens, and many children exceed recommended limits due to schoolwork and entertainment. Extended screen use forces your eyes to work harder than they were designed to, leading to visual stress and fatigue.
Computer vision syndrome is a group of eye- and vision-related problems that result from extended use of computers, smartphones, and other digital devices. Unlike reading printed text, screens introduce challenges such as glare, reduced contrast, and constant refocusing.
Common symptoms of computer vision syndrome include:
Eye strain or eye fatigue
Dry, irritated, or burning eyes
Blurred or fluctuating vision
Headaches
Neck, shoulder, or back pain
Difficulty focusing after screen use
If these symptoms occur regularly, your eyes may be signaling that your screen habits need adjustment - or that it’s time for an eye exam.
While there is no universal number that applies to everyone, eye care professionals generally agree that any screen use longer than two continuous hours without breaks can strain your eyes.
For children, guidelines often recommend:
Limiting recreational screen time to 1-2 hours per day
Encouraging frequent breaks during school-related screen use
For adults, the key isn’t eliminating screens entirely, but managing how long and how intensely your eyes are focused on them.
Fortunately, there are effective ways to reduce eye strain - even if screens are part of your daily routine.
Follow the 20-20-20 Rule: Every 20 minutes, look at something at least 20 feet away for 20 seconds. This helps relax your eye muscles and reduce fatigue.
Adjust Your Screen Setup: Position screens about 20-28 inches from your eyes. Keep the top of the screen slightly below eye level. Reduce glare by adjusting lighting or using anti-glare filters.
Use Proper Vision Correction: Uncorrected vision issues can significantly worsen digital eye strain. Glasses designed specifically for computer use may help in some cases.
Regular comprehensive eye exams play a critical role in detecting and managing computer vision syndrome. During an exam, your eye doctor can:
Identify vision problems that contribute to eye strain
Check for dry eye disease or focusing issues
Recommend customized solutions based on your screen habits
Even if your vision seems fine, subtle changes can still cause discomfort when combined with prolonged screen use.
You should schedule an eye exam if you:
Experience frequent headaches or eye strain
Have blurred vision after screen use
Notice persistent dry or irritated eyes
Spend several hours per day on digital devices
Haven’t had a comprehensive eye exam in over a year
Early evaluation can prevent minor symptoms from becoming chronic problems.
In today’s digital world, screen time is unavoidable - but eye discomfort doesn’t have to be. While there’s no exact limit that fits everyone, prolonged, uninterrupted screen use can strain your eyes and lead to computer vision syndrome. By taking regular breaks, adjusting your workspace, and prioritizing comprehensive eye exams, you can protect your vision and stay comfortable on and off the screen.
If you’re experiencing eye strain, headaches, or blurred vision from screen use, WeCare Eye Group is here to help. We’re here to serve you at multiple locations across Pennsylvania and Rhode Island. Contact the office nearest you to book your appointment today:
• Ardmore Eye Care - Ardmore, PA | (610) 624-2151
• WeCare Eyes and Skin MedSpa - Providence, RI | (401) 331-7850
• Cranston Eye and Optical - Cranston, RI | (401) 942-9933
• Westminster Eye Care Associates - Providence, RI | (401) 331-7850
• Smithfield Eye and Optical - Greenville, RI | (401) 949-7300
• College Hill Eye and Optical - Providence, RI | (401) 831-2015
• North Providence Eye and Optical - North Providence, RI | (401) 353-2010