Please Confirm Before Purchase , Don't buy mistakes!!

   "+" Means: Magnifying Glasses/Hyperopia/Prebyopia/Farsightedness , for old man look near

   "-" Means: Myopia/Short-short/Vision Miuns , for students look far

 For example : if you need presbyopia +2.5 , please purchase +250

                       If you need myopia -1.75 , please buy -175

This glasses can have myopia,near sight,short sight,vision minus(-1.0 To -4.0). But not have Reading, hyperopia,magnifying,prisbyopia,Farsight (+1.0 To +4.0) ,so not buy mistake , thanks .