Rio’s violent incident in Portland, Oregon has aroused domestic and foreign attention. This war has a unique weapon of injury, that is, conscious laser injury. The use of Laser pointer as a weapon violates the Geneva Convention because it can cause serious eye damage. However, Portland protesters are said to have used these against Leo.
The actual output power of the laser pointer tested by the German Institute is 100 times the specified output power. The labels of both devices are 1mw, but the power is only 45mw. In another case, devices with less than 5mw on the label actually released 105mw.These high-efficiency lasers usually emit light in the green spectrum. Unlike red lasers, the green spectrum appears in various wavelengths, including infrared, which is invisible to the naked eye. The shorter the green light wavelength, the more obvious the photothermal damage. Studies have shown that 90% of the green laser cards have an output power of more than 5mw, which is the threshold of “high-power laser”.
When the retina absorbs radiant energy, the tissue becomes warmer, leading to protein degeneration, retinal edema, inflammation, and cell death. There are also reports of retinal hemorrhage. It is necessary to introduce to the ophthalmology department, but the options are limited. Although topical steroids and systemic steroids are used, data on the improvement of the victim’s vision are conflicting. Even people with improved vision cannot fully recover and continue to show continuity. Even if the final vision is only 20/20, scars will be left on the retina. Britain, Hong Kong and Chile have also adopted this strategy.
