Don’t stare at your Smartphone for too long – you may go blind!

After playing China’s most addictive mobile phone game for a whole day, a Chinese woman has gone partially blind!

The young woman was an avid fan of the popular game – Honor of Kings, however playing the game for hours on end resulted in her losing her vision in her right eye.

After visiting multiple hospitals, doctors diagnosed her with RAO (Retinal Artery Occlusion)!

RAO is the blockage in one of the small arteries that carry blood to the retina in your eye. The retina is a layer of tissue in the back of the eye that is able to sense light. So, what causes RAO? The retinal arteries may become blocked when a blood clot or fat deposit gets stuck in the arteries; these blockages are more likely if there is hardening of the arteries in the eye. Once the artery is blocked, your retina cannot receive blood and oxygen causing loss of vision.

RAO usually occurs in elderly people, however this Chinese woman had a severe addiction. She admitted to playing the game for up to eight hours continuously and never took a break to eat, drink or use the toilet.

According to her, she spent an entire day playing the game, then after dinner she lost sight in her right eye and was brought to the hospital. BUT a medical director in London has told news outlets that there is only a slim chance that she developed RAO from her addiction to the game.

"You don't get RAO from video-related severe eye strain as is suggested here — it's most commonly evidence of some form of cardiovascular disease," he said.

The addictive game, Honor of Kings has over 200 million users across China and even the company behind the game admit that they’ve had to put a restriction on the game so kids under the age of 12 can only play for a max of one hour per day.