WDO (Weihai Dingxin Optical)  have been serving the world in the optical lens industry since 1998.

Our key and advantages products

Single Vision Lens:CR-39;1.56;1.60;1.67;1,74

Bifocal Lens: CR-39; 1.56;1.60

Progressive Lens: CR-39; 1.56; 1.60

Functional Lens: Blue Cut, Photochromic; Photomagic +UV420cut, Polarized; Polycarbonate

RX Service: Free Form; Special Coating; Special Power Range



How to avoid foggy glasses
let's review some ways to prevent this fog when you're wearing glasses and a face mask.

1. Wash the lenses with soapy water
The study from The Annals of The Royal College of Surgeons of England supplies a simple solution to the foggy-lens problem, which it refers to as an "annoying phenomenon."

Authors of the study recommend that before slipping on a face mask, you should wash your glasses or sunglasses lenses with soapy water and shake off the excess moisture. Then, let your glasses air dry or gently dry the lenses with a clean microfiber cloth.

Using this method, the lenses shouldn't fog up once you put on the mask and glasses, the study says. Why? Cleaning the lenses with soapy water leaves a thin film that reduces the "inherent surface tension" and prods the water molecules to form a transparent layer.

2. Seal the mask
Keeping your breath in your mask and away from your spectacles keeps your lenses from fogging up.

An easy, inexpensive way to seal your mask to keep your breath from reaching your glasses? Stick a piece of double-sided tape across the bridge of the nose before putting on a mask, advises Dr. Sivaraman Viswanathan, head of the Optometry Department at Sankara Nethralaya.

This will ensure that your mask is well-fitted and will help to prevent the amount of hot air that can reach the lens

3. Adjust your glasses
If your glasses have nose pads, you can tweak the pads so that the frames sit slightly farther from your face.

Be careful, though. Altering the nose pads may slightly change your vision if you wear glasses with progressive lenses or lenses with a strong prescription. If that happens, you might need to hold your head at a different angle to compensate for the vision change.

4. Breathe downward
It might be awkward, but breathing downward can be a quick anti-fog fix. This sends the air away from your glasses.

How do you breathe downward? Hold your upper lip over your lower lip. Then blow air downward, as if you're playing a flute.

5. Check out anti-fog lenses
This won't fix your foggy-lens problem right away, but you might consider buying lenses with an anti-fog coating. An anti-fog coating gives you a hassle-free answer to foggy lenses, regardless of whether the obstructed vision is triggered by a face mask or something else.

03.Packing and Shipping 

1.If you need the samples, we will check the samples fee and the shipping cost, and we will delivery the samples to you
In three days after we receive the payment.
If you do not need the samples, we can send the price list to you.

2.If you are satisfied with our samples or the price list, you can show us your order list.

3.We will do a proforma invoice which show you the total cost including the goods fee, shipping cost, the size of the lenses
And some other important information.

4.We will start the order when we receive your despoit, the 30% of the total cost.

5.We need about 15~40 days to produce the order which up to your quantity, and keep update the producing process to
You in time.

6.When we finish the producing, we will inform you to pay for the rest of the money.And we will delivery to you asap when
We receive the balance.

7.We will offer the tracking number and the documents for you to clearance at customs.