Seeing things

I've fallen into a bit of a rut lately, with recent developments on the visual front forcing a re-think about my grandson Sam's advice to take things more seriously. Up to this point I've never felt the urge to be an 'investigative' blindy; there's too much stuff out there and it keeps getting updated, so trying to process the bits that could benefit me alone seems like a never-ending journey. Remember the 'smart cane' and 'thinking specs’? Now I hear the med folk are doping mice to improve their vision. I'm sure that sort of stuff will lead somewhere but, like most things medical, the machinations of it leave me confused.