During the new crown pneumonia epidemic, the number of temperature measurements is more frequent, and there are rumors that the use of infrared temperature guns to measure body temperature can lead to eye burns, vision loss, and even permanent damage to the eyes.
In fact, infrared thermometry principle is to receive infrared rays emitted by objects, high temperature objects emit a large amount of infrared rays, low temperature objects emit a smaller amount of infrared rays. Infrared thermometer gun will not actively irradiate the measured object, so do not worry too much, just cooperate with the measurement can be. If you are really worried, you can close your eyes during the measurement.