23 June 2010

What Is PD?

What is PD?
PD stands for Pupillary Distance. This is the distance between the center of your pupils in each eye and that is measured in millimeters. Corrected lens eyeglasses cannot be made without PD. It is used to position the optical center of the lens when it is made so that you will be able to see easily through the eyeglasses. No PD for you from Opticians, then you can request a friend to measure your PD. You can learn more on how to get your PD at Zennioptical.com. Zenni: the #1 online eyeglasses store, where you can find lots of prescription eyeglasses. They also give advice on what to do to get the right eyeglasses you need.
The correct PD is particularly important for a multi-focal lens, as there are multiple viewing fields which are adjusted on the basis of the PD supplied.

1 smart remarks:

Alan Wednesday, June 23, 2010  

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I make this blog for foreigners who will live in this country, THE NETHERLANDS. Foreigners who are engaged or married they have to learn a lot of things about their new home like the culture, architectures, landscape, government, dikes etc. Especially the Dutch language which is very important in their social life. It is very difficult if they cannot communicate with other people. Most people speak Dutch, only few speaks English.
For visitors and readers, this will give you an idea what this country is. This small country ranks no. 5 in the economic stability in EUROPE. Their architectures like palaces, castles, dikes, ports (air and sea) are amazing.
Their culture is very interesting.

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