Digital screen use and its impact on eye health and glaucoma management

Prolonged screen use is linked to digital eye strain and ocular surface disease, which can complicate the management of chronic conditions like glaucoma. While digital displays do not directly cause glaucoma, the reduced blinking frequency associated with screen use—estimated at 66 per cent less—leads to dry eyes and irritation. This discomfort can increase sensitivity to anti-glaucoma eye drops, potentially causing patients to skip necessary doses and hindering disease control.

Digital eye strain, or computer vision syndrome, manifests through symptoms such as blurred vision, headaches, and tired eyes. Experts note that the issue is often driven by how eyes are used during concentrated work, such as incomplete blinking and sustained close-up focus, rather than permanent damage from the screens themselves. Environmental factors, including air conditioning and dry indoor air, can further exacerbate ocular discomfort.

To mitigate these effects, the American Optometric Association suggests the 20-20-20 rule: every 20 minutes, looking at something 20 feet away for 20 seconds to relieve focusing fatigue.