Daily Knowledge Podcast

In this episode, you’re going to learn what exactly “20-20” or “6-6” vision means and how this scale is determined, as well as how it was originally thought up. [TRANSCRIPT] Don’t miss future episodes of this podcast, subscribe here: iTunes | RSS/XML You can also find more episodes by going here: Daily Knowledge Podcast The post Podcast Episode #218: Demystifying the 20-20 and 6-6 Vision Scales appeared first on Today I Found Out.