3 ms·

This is a well known phenomenon. It accounts for example in the flash perceived when someone inadvertently looks at an infrared class 5 laser and is blinded

• staunton 2y ago
  In standard laser classification, there are only four classes. Class 4 includes IR laser welding systems...
  • thechao 2y ago
    Maybe they're only blind briefly?
  • tbenst 2y ago
    You’re right, I meant class 4