Please Confirm Before Purchase , Don`t buy mistakes!!
"+" Means: Magnifying Glasses/Hyperopia/Prebyopia/Farsightedness , Most Use For 40-80 Years Old
"-" Means: Myopia/Short-short/Vision Miuns , Most Use For 0-40 Years Old
For example : if you need presbyopia +2.5 , please purchase +250
If you need myopia -1.75 , please buy -175
7 different magnifying powers 1.00 to 4.00 are available Strength/degree:+1.00, +1.50,+2.00,+2.50,+3.00,+3.50,+4.00 Reference: 40-45 years old: +1.00D 45-50 years old: +1.50D 50-55 years old: +2.00D 55-60 years old: +2.50D 60-65 years old: +3.00D 65-70 years old: +3.50D more than 75 years old:+4.00D