Here 4 type you can Choice
A, blue light computer glasses without diopter. choose blue light 0 diopter.
B, myopia glasses with blue light. choose myopia ??? or single vision 156.
C, photochromic sunglasses with myopia diopter or 0 diopter.
D, progressive reading glasses without cylinder or with it.
Up means see far or distance. down means see close or near for reading.
For PLUS +, down diopter - up diopter =ADD.
LIKE UP 100 DOWN 300 =+1.0ADD+2.0.
For minus -, up diopter - down diopter =ADD.
LIKE MINUS 250 MINUS 100=-2.5ADD+1.5
Many buyer like SHINU Progressive multifocal reading glasses. and our price much higher than other brand store. the reason is we use SHINU progressive resin lenses.and with high quality. cr39 resin lens also have many quality grade. AAA.AA. A .AB. B.we can say our quality is AA.
Others. we can do any diopter. with astigmatism or without it.all can make it. 22.214.171.124.1.67,1.74 index also ok for us.
About how to order progressive . please check this video get some idea. other langauge check below.
Spanish : https://youtu.be/HbtPrhIeYvE
Portuguese : https://youtu.be/rqy5sti-BbI
Russian : https://youtu.be/RswCsW2Spe0
please check your face size or frame size before you order.
very important for this. please take 1 mins check it.