But these are sunglasses which are unlikely to be worn much indoors. So one might still have to fumble in a bag for the glasses, don them to put the camera in line of sight and then take a snap.

What really irks me is the overloading of the term 'spectacles'. These are absolutely not spectacles as commonly understood: "lenses to help a person's sight". But henceforth, any time anyone wants to search for spectacles they'll have to include terms to exclude Snapchat's gadget.

Surely they could have saved some of the money they spent on buying spectacles.com and invented a unique name. Snapticles? ( Google lists four hits for that word right now ).