We've seen some great stuff this Halloween - from Rita Ora's turn as rapper Post Malone through to Harry Styles as a very spangly Elton John. We've also had the usual batch of slightly more, erm, tasteless costumes, but perhaps the less said about those the better.
But one of the biggest trends right now is using coloured contact lenses, which can look SERIOUSLY spooky given how little effort is required.
But it seems creepy contact lenses might not be quite as straightforward as you think - with one Canadian mother warning against them after her daughter 'almost went blind' from them.
Julie Turcotte told local media that her 11-year-old daughter Emilie almost lost her eyesight after wearing coloured contact lenses for Halloween, and now urges other parents to be wary of the risks of kids wearing them for cosmetic reasons.
Julie, who lives in the Montreal suburb of Blainville located in the eastern Canadian province of Quebec, said: "For four days we were so scared. She could not see anything. All that for Halloween contact lenses!"
Julie explained that Emilie had worn the contact lenses for around four hours at school, before taking them off for dinner. She then put them back in again to go trick-or-treating with friends, and took them off to sleep when she got home.
It was the next day that Emilie woke up screaming, her eyes 'burning like fire'.
Julie opened Emilie's weeping eyes and saw that her daughter's eyes were 'blood red'. Doctors later explained that the contact lenses had damaged the girl's corneas.
Fortunately for Emilie, the pain eventually subsided and she gradually regained her sight. However, she still had to continue wearing sunglasses for a whole month in order to let her damaged corneas heal - which just proves how scary the incident must have been.
While five of Emilie's friends wore similar contact lenses for Halloween without any issues, Julie is still keen to spread the word about the potential risks.
Julie continued: "When you lose your eyesight, it cannot be replaced. Contact lenses are a good disguise, but at what price?"
Eye care experts in Quebec are also calling for the sale of coloured contact lenses to be banned unless they are medically required.
Eric Poulin, the president of the Quebec Association of Optometrists, said: "It is a medical product and it should be treated as such. They are sold everywhere, but they should not be."
Stay safe out there, Halloweeners!
Featured Image Credit: CEN