•Dr Priscilia Imade
Smartphones have become an integral part of our daily life but their prolonged use could pose a great danger to eye health and a significant risk for Digital Eye Strain (DES) also known as Computer Vision Syndrome ( CVS ).
Digital Eye Strain refers to a group of eye and vision related problems resulting from prolonged use of electronic devices such as smartphones, tablets, computers, e-readers, televisions and any form of digital screens.
The high visual demand for reading or scrolling when using the smartphone can intensify strain on the eye muscles, making smartphones a key contributor to digital eye strain especially among children and young adults.
Smartphones play a significant role in Digital Eye Strain (DES) due to their design, usage patterns and how we interact with them.
HOW SMARTPHONES AFFECT THE EYES
1. Prolonged Close-Up Viewing:
a) Smartphones are typically held closer to the eyes (8–12 inches), increasing accommodative demand and eye muscle fatigue.
b) Continuous close-up focus stresses the ciliary muscles, contributing to strain and potentially myopia progression, especially in children.
2. Reduced Blinking:
While using phones, people blink less frequently, which leads to dry, irritated eye, which is a common digital eye strain symptom.
3. Screen Size and Text Strain:
Smaller screens often mean smaller font sizes, more scrolling and squinting.
This forces the eyes to work harder, especially in low-light environments.
4. Excessive Use Without Breaks:
Phones are used constantly and habitually for texting, browsing, videos and social media often without regular breaks.
Unlike desktops or laptops, people rarely follow ergonomic guidelines when using phones (e.g., poor posture, lying down or viewing at awkward angles).
5. Blue Light Exposure
Smartphone screens emit blue light, which can disrupt sleep patterns if used at night. This contribute to visual fatigue and discomfort.
It may also affect melatonin production and circadian rhythms.
6. High Use Among Children and Teens:
Children are particularly vulnerable due to long hours of screen time (school and entertainment). Poor visual habits and higher sensitivity to light and visual stress.
CONCLUSION
Smartphones due to their portability, small screen size and intense usage are a major contributor to Digital Eye Strain.
Managing phone use through screen time limits, proper lighting, font adjustments, breaks and posture can significantly reduce digital eye strain risk.
