Under my eye

My sight isn't what it was but I still manage to spot  the small movements that betray the presence of some living thing  in my surroundings. On my walk today a strikingly marked magpie moth dangled itself confusingly among some dried leaves in the hedge, and a newly-terrestrial miniature frog clambered through the grass to reach the safety of a clump of eyebright.  Eyebright, with its tiny white, yellow and purple flowers, has had a reputation since classical times of improving vision and treating eye problems and is still used for such today. I may have recourse to it sometime soon when I can no longer see so well.