The blue light coming out of the smartphones and certain other digital devices can result in blindness, as per a new study.
The study conducted by the researchers of the University of Toledo (UT) in Ohio has shown that if a person spends extended hours using smartphones, laptop or tablet then the blue light emitted by these can result in poisonous chemical molecules to grow in the light-sensitive cells of the eyes, which are the mainly the photoreceptors cells, and cause irreversible damage to eyes like night blindness and age-related macular degeneration (AMD).
Ajith Karunarathne, one of the authors of the study said in the UT site that the humans now have a continuous exposure to blue light emitted by digital devices as the eye’s lens, as well as the cornea, cannot reflect or block it, which is why the light can cause damage to the eye.
The blue light tends to have a relatively shorter wavelength as well as energy than compared to the other visible lights. Moreover, it also has a high amount of energy than other color lights.
The AMD is an irreversible eye damage which causes a loss in central vision. Additionally, it is also a primary cause of blindness among those individuals who are above the age of 50 years, as per the Singapore National Eye Centre Website.
The patients who are affected with AMD still have enough of peripheral vision for their day-to-day activities but will face difficulty in driving, reading and recognizing the faces of people.
The researchers are presently measuring the light which is emitted by the hand-phones, televisions, table screens in order to understand how the cells present in the human eyes react to the daily blue light exposure.
The study conducted by the UT researchers was published in the journal Scientific Reports in July.