I too bought these after seeing Lindsay’s video. Excellent and cheap With spare lenses. I unclipped the light as with batteries it’s a bit heavy and not needed as I have a good desk light.I have similar problems but most of the time I can get a way with using 2.5 mag specs. However, I saw the following youtube video and subsequently purchased the featured magnifiers - they are very good for little outlay.
The Donegal Optivisor is also good optically but expensive. I found the arms of the hinged bracket that holds the lens to be too flimsy and cracked. Old credit card cut to size and superglued as a splint helps!