Do Those Colorblindness Glasses Really Work?

You might have seen videos on YouTube or other social media that show a colorblind person trying these new colorblind glasses for the first time. 

The person trying the glasses is frequently overcome with emotion and they usually start staring at things to experience the difference. 

So do these glasses fix colorblindness or do they just use some tricks to lessen the effects? 

Also, what exactly is colorblindness and how does it work? 

These questions and a whole lot more are answered in the following video by SciShow. 

Watch it below and then don't forget to leave me a comment!