A young Chinese woman's eyesight was badly damaged after binge-watching Korean drama on her tablet last weekend (March 5-6).
Chinese media reported that the 20-year-old woman, Ms Huang, had watched 18 one-hour-long episodes consecutively and only took breaks to have her meals.
Although she experienced some discomfort in her eyes, she chose to continue with the drama marathon.
Ms Huang woke up on Monday (March 7) morning with excruciating eye pain and nausea.
After a checkup at Nanjing Hospital's ophthalmology department, doctors found that the young woman's condition was more severe than regular eye strain.
She was diagnosed with acute glaucoma, a condition in which the buildup of pressure in the eyes can cause a person to become blind.
Other symptoms of acute glaucoma include eye redness, headache, and nausea, according to the Singapore National Eye Centre.
Sina News reported that Ms Huang's eyesight was affected by prolonged periods of staring at a tablet screen from a near distance.
To make matters worse, she did not switch on the lights while catching the programme at night.
Meanwhile, Toho University's recent research findings revealed that a person who looks at the computer screen for more than nine hours a day is twice as likely to suffer from glaucoma than the average person.
Those with shortsightedness (myopia) were also found to have increased risks of developing the eye condition.
Are you guilty of being a screen addict? Check out these eye care tips: