You are going to be amazed at the exhaustive list of eyewear on offer at the reputed optical online store-zennioptical.com. The range of prescription glasses is a mini-list in itself. They offer great range of lens materials – polycarbonate lenses etc. from which you can choose to order the best eyewear for yourself.

However, a Pupillary Distance , the measurement of your pupils is essential to make the prescription eyewear. As most opticians withhold this crucial measurement, you may not find it with your regular optical records. Therefore, to overcome such technical snags, you can measure your PD yourself using the iphone App on your iPhone. Now, based on these readings, the customized eyeglasses with the right pair of frames that you chose online are shipped at the most affordable and competitive prices.