Some eye care professionals are worried that many young people are using their mobile phones and other tech devices enough to cause damage to their eyes. While no individual session is enough to cause noticeable damage, the cumulative affect over time may be something to be concerned about.
It currently estimated that people between the ages of 18 and 35 check their mobile phones more than 30 times a day. That works out to roughly once every half hour from the time a person gets out of bed in the morning until they go to sleep at night.
What’s dangerous about digital displays is the wavelengths of light that they emit. Compared to natural sunlight, digital displays are considered to be cooler in colour, meaning that they have less red light, and more blue light. As blue is very close to violet on the colour spectrum, and ultraviolet light is known to be very damaging to skin and eyes, it’s no stretch to understand that that much additional blue light being taken in by the eye is potentially dangerous.
The most likely result of this damage is the development of macular degeneration, one of the most common causes of blindness in the entire world. It causes a blind spot to develop in the center of the visual field, which slowly grows over time, obscuring more and more of the incoming light.
While there are many strong suspicions that there is a direct link between digital displays on computers and mobile devices and eye damage, there hasn’t been enough time or research to draw a conclusive link. These types of displays have only existed for little more than a decade, and have found widespread usage much more recently.
As the type of damage in question would take many years to develop, it’s simply too soon to know the real consequences of heavy daily used device.