The symptoms you describe are typical of accommodative eye strain caused by prolonged use of digital devices, commonly known as screen vision syndrome. This condition is prevalent among individuals who spend extensive time on phones, tablets, and computers.

Continuous screen viewing forces the eyes to work harder, while the blink rate decreases by 40-60%. This causes the tear film to evaporate quickly, leading to dry eyes, fatigue, burning, discomfort, and temporary blurred vision. Sufferers may also experience headaches, strain in the frontal and temporal muscles, and reduced concentration. Electronic screens with low contrast between text and background further exacerbate eye effort. While not an acute or dangerous condition, prolonged screen vision syndrome can worsen existing eye problems such as chronic dry eyes, blepharitis, and severe accommodative dysfunction. Sustained eye effort can also diminish the ability to focus during reading, writing, and work tasks.

To alleviate eye strain, it is advisable to adjust your work and daily habits. Implement the 20-20-20 rule: every 20 minutes of screen time, look at an object about 6 meters away for at least 20 seconds to allow your eyes to relax. Additionally, blink frequently, avoid continuous screen staring, position your screen below eye level at an appropriate distance, and ensure adequate room lighting that is neither too bright nor too dim. Avoid overusing eye drops, especially those containing preservatives, as they can paradoxically worsen dry eyes.

You should seek an eye examination promptly if you experience persistent eye strain and burning sensations despite resting; frequent blurred vision, especially difficulty seeing distant objects after working; recurrent headaches or deep pain behind the eye sockets; or daily reliance on eye drops. A doctor can assess the ocular surface, tear film quality, and blepharitis status, while ruling out other eye conditions to provide appropriate treatment.

Master, Doctor Le Thanh Huyen

High-Tech Eye Center

Tam Anh General Hospital Hanoi