Min. Order Reference FOB Price
1000 Pairs US$0.10-10.00 / Pair
Product Description
Bifocal lens can be used to correct both far and near vision, mainly for presbyopia. The general distribution of bifocal lens is: the upper part of the lens is to see the distance, the lower part of the lens is used to watch the use of the near point, as for the size of the near norm, the nature of ...