The authentic Visions will have the "Vision Technica" logo and will look and feel like OEM with half black and half beige housing in the back. The plastic is also of a higher quality like OEM with heavier weight. They would be packaged in Vision stamped logo in red all over a white box.
Fake Visions will have the "Vision Technica" logo on it...with either all chrome, all biege or all black housing. The plastic is of lighter weight and will feel like all the other clear, euro, blah blah APC type corners out there. These will be packaged on a plain white box with a warning sticker.