<div class="_help_font_site selected-art-author"> <p style="margin-left:39.75pt"><span style="font-size:medium">a. &nbsp; Prescription and PD<br /> <br /> An eyeglass prescription is necessary for us to process your prescription glasses. If there is no problem with your eyes and you do not need prescription lenses, you could choose non-prescription lenses.</span></p> <p style="margin-left:39.75pt"><span style="font-size:medium">PD stands for &quot;Pupillary Distance&quot;, which is the distance between your pupils in millimeters.&nbsp;PD is very important for accurately fitting your lenses&nbsp;</span>and achieving clear vision.</p> <p style="margin-left:39.75pt">If there is no PD indicated&nbsp;on your prescription, we recommend checking with your eye doctor. You may also measure PD yourself. For instructions, visit <a href="/help-p-43.shtml">here</a>.<br /> <br /> <span style="font-size:medium">b. &nbsp; PayPal Account/Credit card/Debit card</span><br /> <br /> To guarantee a convenient and secure payment environment,<span style="font-family:宋体"> </span>we currently accept payment via PayPal. Customers who do not have a PayPal account may use a credit card or debit card to pay as a PayPal guest. For details, please visit <a href="/help-p-59.shtml">here</a><span style="font-size:medium">.</span>&nbsp;We do not currently accept checks&nbsp;or cash.<br /> <br /> <span style="font-size:medium">c. &nbsp; Shipping address</span><br /> <br /> The following shipping information is required: Name, Residential/Postal Address and Phone Number. All must&nbsp;be included.&nbsp;<br /> NOTE: Express Service cannot be used for delivery to a P.O. Box.<br /> <br /> <span style="font-size:medium">d. &nbsp; Frame size and frame style</span><br /> <br /> <span style="font-size:medium">Click on this link to find out more about <a href="/help-p-119.shtml">face shape and frame style</a>.<br /> Use our <a href="/help-p-112.shtml">try-on</a> system for style reference.</span><br /> <span style="font-size:medium"><a href="/help-p-1.shtml">Measuring the frame size</a> is very important.</span></p> </div>