On Tue, 3 Nov 2020 14:43:10 -0800 (PST), Tricky Dicky
wrote:

snip

I used a clip on magnifier on my specs which I could flip up or down as required. Similar to these;

https://www.amazon.co.uk/Reading-Gla.../dp/B07WW3J4ZN


Thinking more about my typical usage I think I like the idea of a flip
up lens ... but knowing how much I didn't like even the weight of some
'proper' prescription glasses, I'm not sure how I'll with cope with
possibly doubling the weight of my existing glasses over having an
additional pair I can slip into place when needed?

Plus it may well depend how well they clip onto my existing glasses,
although at the cost of my existing (£2.99 or summat) I would be happy
bonding the flip up mech to the front of a pair of these if it makes
them lighter and more predictable / comfortable.

That said, I do tend to wear either the X2.5's or x4 separately,
because I can sill move about (reasonably safely) whilst wearing the
x4's.

Cheers, T i m