What are photochromic lenses?
Photochromic lenses are also referred to as light-sensitive lenses”. Glass lenses are adding silver halide, but now is the mainstream of photochromic resin lenses, adding of spiro and other chemicals in the acrylic resin lens, so that the original colorless and transparent lenses, in bright light, will become colored lenses, to do the protection, so is suitable for indoor and outdoor use.
Photochromic lens optical glass containing silver halide microcrystals, phototropy reversible reaction according to the principle, in the sunlight and UV irradiation variable dark, completely absorb ultraviolet and visible light absorption of neutral; back to the dark, can restore the colorless transparent.
Photochromic lenses are mainly used in open-air fields, snow fields and indoor light sources, so as to prevent sunlight and ultraviolet light from damaging the eyes.
Warm tips
1.Please correctly understand photochromic glasses, he color depth does not equal sunglasses
2.Test discoloration, it is recommended to test at noon, noon sun UV strong, discoloration can achieve the best results, more test several times, the effect is better.
3.If you want to change the pupil distanceor customized your prescription,you can choose custom prescription,then note your prescription by order message
4.This glassesis Myopia/Nearsighted/Short-sight/Myopia/Minus(-0.5 To -6.0). But not have Reading/Farsighted/Hyperopia/Magnifier/Presbyopic (+0.5 To +6.0).so not buy mistake , if you need HyperopiaGlasses,you can contact us .thanks .
Please confirm before buying:
“+” Mean:Reading Glasses,Suitable for 40-80 Years Old People
“-” Mean: Short-sight/Myopia,Suitable for 18-40 Years Old People
Don't buying Wrong. it is very important !!!
For Example :
If you need Hyperopia +1.5 , Please order +150 or Reading Plus150
If you need Short-sight -1.5, , Please Order Myopia -1.5
Function : Nearsighted Glasses
Standard Order:-1.0 to -6.0 , PD 62-64mm
Custom Prescription Information
Right sph:(-0.5~-6.0) astigmatism:(-0.5~-2.0) axis:(0~180)
Left sph:(-0.5~-6.0) astigmatism:(-0.5~-2.0) axis:(0~180)
Pupil Distance(40~80)
Example :
Right (OD): Sphere______ Cyl______ Axis______
Left (OS): Sphere______ Cyl______ Axis______
PD: ______mm
Custom Prescription Leave message for two eyes degree Left and right 0/-0.50/-0.75/-1.0/-1.25/-1.5/-1.75/-2.0/-2.25/-2.5/-2.75/-3.0/-3.25/-3.5/-3.75/-4.0/-6.0
Function : Reading Glasses
Reading Glasses :+ 100 +150 to +400 Hyperopia Eyeglasses
40-45 years old: plus 100/+100 / +1.0
45-50 years old: plus 150/+150 /+1.5
50-55 years old: plus 200/+200 /+2.0
55-60 years old: plus 250/+250 /+2.5
60-65 years old: plus 300/+300 /+3.0
65-70 years old: plus 350/+350 /+3.5
more than 75 years old: plus 400/+400 /+4.0
Leavemessagefor two eyes degree Left and right0/+0.50/+0.75/+1.0/+1.25/+1.5/+1.75/+2.0/+2.25/+2.5/+2.75/+3.0/+3.25/+3.5/+3.75/+4.0
Custom Prescription Information
Right sph:(-6.0~+6.0) astigmatism:(-0.5~-2.0) axis:(0~180)
Left sph:(-6.0~+6.0) astigmatism:(-0.5~-2.0) axis:(0~180)
Pupil Distance(40~80)
Example :
Right (OD): Sphere______ Cyl______ Axis______
Left (OS): Sphere______ Cyl______ Axis______
PD: ______mm
Leavemessagefor two eyes degree Left and right0/+0.50/+0.75/+1.0/+1.25/+1.5/+1.75/+2.0/+2.25/+2.5/+2.75/+3.0/+3.25/+3.5/+3.75/+4.0
