Hello,
I use "Ottlight" and/or "Daylight" to light/magnify my easel and workspace. Neither are cheap, but without them artwork would be a non-starter! I find that having the correct spectacle prescription coupled with excellent lighting, brings my eyesight back to something like normal.
However, if you wish to work in magnification, you really need a desk lamp with magnifying glass combined. I have one which I bought at an Artfair, but there is no maker name, sorry.
Lighting is the most important BUT Please visit your optician before investing in magnifiers!
Hope this helps,
Daisybellemay