Continuous exposure to blue light could accelerate blindness

He added:"Photoreceptor cells do not regenerate in the eye. When they're dead, they're dead for good."

Researchers recently found out the effects blue light from the digital equipment like mobile phones and tabs could have on the eyesight.

The University of Toledo performed a research and found exposure to blue light for hours could lead to macular degeneration as the poisonous molecules could be generated in the light-sensitive cells of the eyes known as the photoreceptors.

According to Dr. Ajith Karunarathne, an assistant professor in the university's department of chemistry and biochemistry: "It's no secret that blue light harms our vision by damaging the eye's retina. Our experiments explain how this happens, and we hope this leads to therapies that slow macular degeneration, such as a new kind of eye drop."

Photoreceptors' death is the main cause of macular degeneration. Kasun Ratnayake, a PhD student at the University of Toledo involved in the study said: "If you shine a blue light on retinal, the retinal kills photoreceptor cells as the signaling molecule on the membrane dissolves."

He added: "Photoreceptor cells do not regenerate in the eye. When they're dead, they're dead for good." Its advisable to wear sunglasses capable of filtering both the harmful lights.