Eyeliner is the makeup product most often abandoned after 70, and the reason is a mismatch between what the conventional technique demands and what has changed. The classic liner stroke is a single continuous motion along a moving surface, performed at close range within millimeters of the eye, with no opportunity to correct a mistake. Every one of those requirements is harder with a tremor, stiff fingers or reduced close vision.
But liner is also the highest-return eye product on a mature face, because color at the lash base fills the gaps between sparse lashes — which does more for how an eye reads than any amount of mascara. So abandoning it costs something real, and the useful question is how to get the benefit with a technique that is achievable.
The answer has three parts. Change the format: a firm gel pencil is built up from many short marks rather than one long stroke, and any mark that goes wrong can be smudged into a shadow and absorbed rather than wiped off and restarted. Change the target: pressing color into the lash base is a much more forgiving action than drawing a line above it, and on a hooded lid it is the only placement that stays visible anyway. Change the setup: a braced hand is steadier than a practiced one.
There is also a fourth option that deserves to be taken seriously rather than treated as a fallback: a smudged line is a legitimate look, and it is easier than a crisp one. Pressing a soft pencil into the lash base and then softening it with a matte shadow produces definition with no precision requirement at all — and on a mature hooded lid a soft shadow at the lash line flatters the eye more than a sharp line does.
What this page does not recommend is liquid or felt-tip liner. Not because it cannot be done, but because it demands precisely the things that have become difficult, for a result that suits a hooded lid less well.