Fan girl caught pointing laser during football match banned from stadium; what makes lasers dangerous

A football fan in Argentina has been banned from stadiums after broadcast cameras caught her pointing a green laser directly at a goalkeeper’s face during a live match. The footage of the incident is now viral, reigniting debate about one of the most dangerous forms of interference in professional sport and even in real life.The incident took place during a match between Estudiantes and Velez Sarsfield earlier this month. Television cameras captured a green laser beam dancing around the head and shoulders of Velez goalkeeper Alvaro Montero as he prepared to continue the game.The camera quickly panned to the crowd, catching the source of the laser. A woman was clearly visible, laser pointer in hand, deliberately directing the beam at the goalkeeper’s face.“Here is the girl with the laser. We found her!," commentators exclaimed in Spanish. The clip spread across social media within hours. The woman was subsequently identified as Delfina Quiroa, and according to sports outlet AS, she is now facing a two-year stadium ban for the incident.While laser pointing at professional football matches is not a rare occurrence, it is particularly dangerous for human eye and cameras capturing the footage of live events. One of the most high-profile cases involved Mohamed Salah at the Africa Cup of Nations, when the Liverpool and Egypt star missed a crucial penalty while laser beams were being shone in his face by opposition supporters. The incident drew widespread condemnation.Even brief exposure to a laser beam directed at the eye can cause permanent vision damage. A 2020 report highlighted by Science Alert described a teenager in Ohio who suffered serious retinal damage after playing what he and his friends considered a harmless “shooting game” with laser pointers.“Though commonly believed to be safe, even brief laser-pointer exposure to the eye can lead to permanent vision loss, with children being particularly at risk,” as per Ohio State University researchers. The higher the power output the faster and more severe the damage can be. This implies that players are being exposed to a genuine risk of lasting eye injury.The danger of lasers extends beyond human eyes. Camera sensors, like the ones in smartphones and professional broadcast equipment, are highly vulnerable to laser damage. The types of laser beams used at concerts and live events are known to be capable of frying the image sensors inside cameras, rendering them permanently damaged or non-functional.In July 2021, Sony published an official warning on its website addressing the issue directly. "Do not directly expose the lens to beams such as laser beams. This may cause damage to the image sensor and cause the camera to malfunction," the warning reads.