How to emulate color vision deficiency in Chrome

How often in your tests do you check if the site is or would be accesibble to users with vision deficiency?
If you have never considered this or if you do not know how you could do this in a fast way have a look at the below video.

I found a really nice option in Chrome that does not require any additional software installation but still allows you to check for the most common vision deficiencies on a site.

Hope you like it.

Did you know about this? Do you use other tools?