Not to mention that on the Internet, it is unfortunately very easy to get cheap 5000mw laser pointer whose power sometimes greater than 5,000 mW would be enough to set fire. Demonstration with this video presentation unearthed on a laser sales site without restriction or special warning:
Be that as it may, it is always the eyes which are the most fragile in the face of radiation; the eye being an organ whose primary role is to capture light. And the so-called "eyelid" reflex by which the eyes instinctively protect themselves from potential aggression by closing the eyelid or looking away is not enough to protect the retina. Because it is towards this that the lasers emitting in the visible and the near infrared converge and cause irreversible damage.

A laser from the communication system? Finally, the last hypothesis made to date directly concerns the means with which the video was transmitted, namely: the Optical Payload for Lasercomm Science (OPALS). It is this technology that currently provides communication between the ISS and Earth. Unlike the old means of communication used by the station, OPALS does not work with radio waves but with laser flashlight rays. This system ensures much faster transmission of information and videos in high definition. It is therefore possible that it is one of these rays that was immortalized by the webcam. For the time being, NASA has not commented on the question and has therefore not yet decided on one of the hypotheses. These have already helped to rule out the most bizarre theories. But the case remains to be followed ...

"Relapse"
Last January, doctors at Duke University Medical Center in North Carolina warned in JAMA Ophthalmology that high power laser pointer, which are offered on the Internet, should never be aimed at the eyes and should not be aimed at the eyes. not be used in the presence of children.

Doctors take as an example the case of a 9-year-old child who recently went to the emergency room after looking directly at a laser operated by an adult near him. Since the 2000mw laser pointer is Category 4, the doctors observed severe loss of bilateral vision. Fortunately, the child finally regained his sight after two months.