Thanks to Otis Brown in the I-SEE Yahoo! Groups for pointing out this invention – a pair of adaptive, “universal” eyeglasses – demonstrated below:

If sold to the general public, I could see this being perfect for use as undercorrecting training glasses. No longer would NVI practitioners need to persuade the eye doctor to underprescribe a pair of glasses for training purposes, and they could be easily adjusted as one’s vision improves.

While they do look a bit odd (!), I could see them being used mostly around the house.

The glasses are being developed by a company called Adaptive Eyecare, whose mission is to “provide affordable corrective eyewear in the developing world.” This could prove to be a negative if these glasses are used to lock people into stronger and stronger prescriptions, but could also be a powerful tool if used alongside NVI principles.