Blue Light from Smartphone Causes Blindness


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Recent research published by the University of Toledo in the US has captured the imagination of smartphone users and ophthalmologists worldwide.

Several newspapers and health websites were quick with an alarming manner that suggested that gloomy lighting from smartphones, notebooks, and other electronic devices damage vision and can cause blindness.

The study suggests that prolonged exposure to blue light that has a shorter wavelength and more energy compared to other colors can harm your vision. The damage to the macula, the light-sensitive part of the retina, is known as macular degeneration. Exposure to blue light results in the generation of toxic chemical molecules inside the photoreceptor cells which are light-sensitive cells from the retina.

Is my phone which makes me blind?

Even though there is definite merit in being careful when using smartphones, laptops and other display apparatus, the anxiety generated by this analysis is mainly unfounded.

Actually, the lead author of the analysis Ajith Karunarathne, Ph.D., was requested by The Verge whether his study showed that using electronic screens induces blindness, and he replied with a resounding,”Absolutely not.”

This experiment doesn’t replicate real-life conditions, and the cells which were tested are not derived from human retina cells, and the research was carried out in rats. In addition to this, the study didn’t mimic real-life exposure to blue light from smartphones. The study, therefore, merely postulates how the damage may be mediated, and doesn’t speak of blue light causing blindness in any way.

This, nevertheless, doesn’t mean that smartphones do not impact the eyes adversely.

So, what would be the real risks of smartphone metering?

There are real worries about display use and its detrimental effects on the eye. Excessive smartphone use can damage your eyes in Many ways, these comprise:

Stress, dry eyes, and headaches

You may develop symptoms like blurred vision, dry eyes, and headaches. This is because of the prolonged close effort, and because you have a tendency to blink less when on a display device.

That is why the usage of tablets at night could disturb your sleep pattern and lead in sleep-wake disturbances.

Stress and stress

Psychologists believe that the indiscriminate use of smartphones may result in a greater risk of depression, anxiety, and insomnia, especially among teens.


Some scientists believe that smartphones might increase the incidents of certain head and neck tumors like gliomas, meningiomas, and acoustic neuromas since they emit radio waves. There’s not enough evidence to show that smartphones can cause cancers and tumors, but still, experts advise caution, especially in children.

How do we prevent the smartphone induced damage to your eyes?

Restrict using smartphones

It’s important to cut back on the screen time. Remember, the time spent with any display device, be it a telephone, television, Play Station, notebooks and tablet computers all add up when it comes to causing eye pressure.

Be Sure to take regular breaks

Remember the 20:20:20 rule. Every twenty minutes, have a break for twenty seconds and shut your eyes. Now, look at something at least 20 feet away to help relax your eyes. This can help loosen your eyes and minimize the spasm of their convergence muscles.

Remember to blink

Staring at the display reduces your blink rate to less than one-third of ordinary. The normal rate fluctuates from 12 to 15 blinks per minute and is responsible for maintaining the eyes well lubricated. When the blink speed is diminished, it results in dryness of the eyes since the tear film isn’t rejuvenated. For this reason, you should be sure to blink more often when sitting in front of any screen apparatus.

Assess settings for contrast, brightness and font dimensions

It’s easiest to read black letters on a white background. A larger font size reduces eye strain. Additionally, avoid reading in the dark, and make certain that the light doesn’t reflect off your screen apparatus, causing glare.

You can ask your eye doctor to suggest preservative free lubricating eye drops. Since these eye drops are preservative free and don’t include any drugs, you may rely on them as and if demanded.

You must receive your eyes checked once a year, and be certain that the power of your eyeglasses is up to date. This will help decrease the strain and fatigue from smartphone use.

In case the symptoms persist, you need to see your physician promptly. These contain persistent eye strain and fatigue, dryness of eyes, frequent headaches and blurry vision.


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