The Spitting Cobra can refer to any number of the cobra species which use its fangs to project venom, sometimes as much as three metres, towards potential enemies when it feels threatened. This venom can cause irritation to intact skin including blistering and redness or swelling, but if introduced to eyes it can cause permanent blindness. The venom is also delivered directly into the victim through a bite. Spitting cobra venom can vary in its effects but most is cytotoxic. Many other cobra varieties feature neurotoxic and cardiotoxic effects, making cobra venoms some of the worst in the world. Spitting cobras can make sudden lunging movements when agitated and spitting their venom, but studies have indicated this is no more than to increase intimidation in the victim.