HomeJournal Journal How to read your glasses prescription 07 November 20261 min read SPH, CYL, AXIS, ADD and PD in plain words. SPH is the main lens power, CYL and AXIS describe astigmatism, ADD is extra reading power and PD is the distance between your pupils. Only your optometrist can say what your numbers mean for you. This is general information, not medical advice. Share
Journal10 Nov 20261 min read Blue-cut lenses: what they do and do not do An honest look before you pay extra. Read more
Journal13 Nov 20261 min read Choosing frames for your face shape Round, oval, square and heart faces. Read more
