There are various gimmicks online showing you how to measure for varifocals, all very confusing! at Highstreetspecs we believe the simplest and best way to measure for Varifocals other than at your optician is to take the measurement from your old Varifocals, this way we can accurately get your centres from your old glasses and glaze your new prescription spectacles correctly. Your 100% no hassle guarantee still applies just follow the procedure and place your order as normal, get your old glasses back to us and we will manufacture your glasses immediately at a fraction of the cost compared to your city centre optician