Our UV system Purifies the water for your entire home Immediately On Contact and Kills 99.99% of ALL Living Bacteria & Viruses! Each UV System comes with a Commercial Quality Big Blue 5 micron pre-filter which captures any microscopic particles so Bacteria canât hide behind them.
If your prescription does not contain your PD: 1  Ask to have it measured at an optical shop â some may charge a fee. 2  Contact an optical shop where you have previously purchased prescription glasses. 3  Your previous optometrist may have a record of your PD.  Alternatively, try measuring your own Pupillary Distance as explained below.
Eyeglass prescription. Using a phoropter to determine a prescription for eyeglasses. An eyeglass prescription is an order written by an eyewear prescriber, such as an optometrist or ophthalmologist, that specifies the value of all parameters the prescriber has deemed necessary to construct and/or dispense corrective lenses appropriate for a patient.