Japan, which is one of the largest gaming market in the world, has found the root cause for the poor eyesight of the its young students - smartphones.

The country's Ministry of Education, Culture, Sports, Science and Technology recently conducted a survey and found that students with vision below the standard 1.0 score (20/20 vision) is at an all-time high of 25.3 percent.

According to Sora News 24, 34.1 percent of elementary students and up to 67.09 percent of high school students did not have 1.0 vision, the highest ever in history.

The ministry has warned that the poor eyesight can be linked to the increased time spent staring at screens caused by smartphone usage and mobile games.

(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)