How a Diwali cracker gun in India went from social media craze to blinding children

In India, carbide guns used as Diwali firecrackers have caused hundreds of eye injuries, with children like 15-year-old Aarish suffering severe vision loss. The cheap, DIY devices gained popularity through viral social media videos, leading to bans in some states after a spate of injuries. Doctors are treating patients with varying degrees of eye damage, highlighting the dangers of using calcium carbide in these improvised explosives.