Z80.3 (2001) is not just about UV protection and also involves impact standards as well. From the ANSI website:
http://www.ansi.org/news_publications/media_tips/can_see.aspx?menuid=7
"While the primary purpose of this eyewear is consumer comfort in bright surroundings, the standard for non-prescription sunglasses (ANSI Z80.3-2001) outlines several types of safety requirements, including protection from ultraviolet (UV) radiation, tolerances for refractive power, flammability resistance, and color discrimination (i.e., the ability to see traffic signals and Light Emitting Diode (LED) traffic control devices). Manufacturers must meet each of these requirements if they intend to express compliance with this American National Standard.
They must also meet impact resistance requirements mandated by the Food and Drug Administration."
As well, Oakley's marketing states glasses such as PBII meets impact standards of Z80.3.
But yes, I know what you're saying.