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https://www.youtube.com/watch?v=yytZMshQDfI
Chromatic Aberration is a failure of a lens to focus all colors to the same point. This could be a problem for affected VR HMD users because they may end up with blurry experiences, doubled text, limited ability to look around in VR, and a general loss of immersion. While most HMD makers implement some kind of chromatic aberration correction with their products, we learned that the solutions may not work equally well for everyone.