25/07/2025
π± Effect of Near Work & Smartphone Overuse on Eye Health
π What the Research Shows:
Prolonged near tasks, especially screen-based work, have been linked to:
π Digital Eye Strain (DES) or Computer Vision Syndrome (CVS)
β¬ Reduced blink rate, leading to evaporative dry eye
βοΈ Accommodative dysfunctions, including spasm and lag
ποΈβπ¨οΈ Myopia progression, particularly in children and adolescents
π Disrupted circadian rhythm due to blue light exposure
π§ Asthenopia, headaches, and difficulty sustaining visual attention
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π¬ Clinical Implications for Eye Care Professionals:
Conduct comprehensive binocular vision assessments
Evaluate tear film stability (TBUT, Schirmer's, meibography)
Prescribe blue-filtering lenses or anti-reflective coatings
Advise on the 20-20-20 rule (every 20 minutes, look 20 feet away for 20 seconds)
Emphasize outdoor activity (minimum 2 hours/day) to slow myopia
Educate patients about ergonomic screen distance and lighting
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π As optometrists, we must recognize digital exposure as a modern visual risk factor, especially for the younger generation.
Regular vision screening and early interventions can mitigate long-term ocular consequences.
