After the age of 40 painting miniatures becomes increasingly difficult because of growing long-sightedness. The need to get reading glasses, adjust glasses or use magnification will depend on the individual, but one thing we can all benefit from is good lighting.
Until now I've relied on daylight and desk lamps but I was given an LED head torch as a Christmas present and it's brilliant for literally 'spotlighting the work in hand'. This has transformed my painting life. Thank you!