Is violet light harmful to people for a long time?

More than 200 teachers and students in Urumqi No.2 Middle School were irradiated by purple light.

Tianshan Net News (Text/Reporter Bai Yang Zhang Xiangyang □ Photo/Reporter Shan Kun) August 30th is the first day for students from Urumqi No.2 Middle School to report for the new school year. After middle school teachers and students walked into the newly completed teaching building happily, more than 200 teachers and students' eyes were injured to varying degrees by the bright purple light in the classroom, and symptoms such as corneal bleeding and edema appeared. After emergency treatment by hospital experts, most teachers and students' eyes have basically returned to normal.