ABO NOCE Practice Test 2026 - Free Optician Certification Practice Questions and Study Guide

Digital eye strain, often referred to as computer vision syndrome, can arise from prolonged exposure to various digital devices. Televisions, smartphones, and computers each emit blue light and require intense focusing, leading to discomfort when used for extended periods.

Televisions, especially larger screens, can cause strain when viewed from close distances or for long durations, as they often involve squinting or straining to read subtitles or details. Smartphones contribute similarly, as their small screens necessitate close proximity to the eyes, increasing the risk of strain due to limited blinking and screen glare. Computers are significant contributors as well; the combination of screen brightness, proximity, and the need to maintain focus for long periods can lead to symptoms such as dry eyes, blurred vision, and headaches.

Since all these devices share common elements that can disturb eye comfort and function, recognizing them collectively highlights the comprehensive nature of digital eye strain in today's tech-centric environment.