Modern work environments demand extended screen time. Medical literature now categorizes the resulting physical discomfort as Computer Vision Syndrome (CVS), which affects between 50% and 90% of individuals who work at a computer screen.
The Mechanics of Screen Fatigue
When staring at digital screens, humans subconsciously reduce their blink rate by up to 66%. This drastic reduction leads to tear evaporation, resulting in dry, irritated eyes. Additionally, the constant refocusing required by screen pixels strains the ciliary muscles within the eye.
Evidence-Based Mitigation
Optometrists universally recommend the 20-20-20 rule: every 20 minutes, look at an object 20 feet away for at least 20 seconds. Clinically, we also utilize Anti-Reflective (AR) multicoatings on spectacles to eliminate glare from screen reflections, easing the focusing burden on the eyes.