#Anti fog safety glasses how to

‘-‘ – Shows if you are short sighted (shortsightedness) ‘+’ – Shows if you are long sighted (longsightedness)

#Anti fog safety glasses how to

If you don't know how to choose the Refractive Index,you can refer to these informations,and you can get the most comfortable prescription glasses. You can choose the lens that is more suitable for you according to your own habits and preferences. The higher the refractive index, the thinner the lens. The thickness of the lens is related to the refractive index. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page. When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. For more info you can check out our Shipping Information page Shipping InformationĪ full list of the countries where we ship glasses is available on the Payment Page. If you need to return an item, please check out our Return Policy first.

This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days). You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.). You may return most new, unopened items within 30 days of delivery for a full refund.