It is an acronym for "you only live once", "Similar to carpe diem, it implies that you should enjoy life, and if you want to do it". 2011 song "the Motto" by Canadian rapper Drake. You will enjoy your Aptica reading glasses!
YOU red gradient
ONCE blue gradient
ONLY brown gradient
LIVE black gradient
round panto shape - size L53-N18-T145
lens powers +1.00> +3.50 and a pupil distance (pd) or 63 + - 1mm