what is single pd or dual pd?
Sun, Apr 03, 22 By : Koalaeye
Tom Barrett Optical The progressive eyeglasses meet your fashion desires and your visual needs. They provide unique framing styles and professions to deliver the highest quality eyewear. They understand the needs of customers to bring fashion and functionality to everyone. For more than 35 years, they have provided stylish eyewear with wonderful service and quality. If the concept of eyewear continues to change, the product quality and service will continue to grow and update. How do prism glasses work? Prism...

Tom Barrett Optical

The progressive eyeglasses meet your fashion desires and your visual needs. They provide unique framing styles and professions to deliver the highest quality eyewear. They understand the needs of customers to bring fashion and functionality to everyone. For more than 35 years, they have provided stylish eyewear with wonderful service and quality. If the concept of eyewear continues to change, the product quality and service will continue to grow and update.


How do prism glasses work?

Prism glasses rearrange the images by bending the light and moving the images the eye sees to the desired position. They can align?with what each eye sees, eliminating the double image that the brain interprets. When the images seen by both of your eyes are rearranged, the light is redirected to the right position in the retina of each eye. The brain fuses these two images together to form one clear image.



Can I use my prescription for contact lenses?

You cannot and should not use your glasses prescription to calculate your contact lens prescription. It's important to note that not everyone who needs glasses can wear contact lenses, and it's important to check them separately. Some people have sensitive corneas or other eye complications and never get used to wearing contact lenses.


Are prescription glasses bought online safe?

You can buy good-quality prescription glasses from online stores of major brands. Like Essilor Official Flagship Store, Baodao Optical Official Flagship Store, these brand stores have professional processing and customer service teams behind them, and the quality of the processed glasses is very good. There are basically no counterfeit sales of brand lenses and frames. SelectSpecs.com sells high-quality prescription eyeglasses to thousands of new and existing customers each year. They are always committed to providing our customers with high-quality products at very competitive prices. SelectSpecs.com provides the lens coating free of charge. Specialist eyewear brands like EyeBuyDirect also offer high-quality prescription eyewear.



The Optical Center of A Lens

When wearing glasses, try to look through the optical center of the lens. This needs the cooperation of the neck, you can slightly lower the head when looking at the computer, to adjust the line of sight. The Center of optical glasses is divided into two kinds: 1 mm up myopic lens center is the most proper, of course, more than 2-3. And the most important thing is that the lens pupil high (about the two-lens optical center of the high and low) must be proper (that is, the right of the lens optical center is 1 mm, the left must be 1 mm. 2-3 mm is the same, what is the height of the pupil on the right side must be the same on the left side. The optical center of the presbyopic lens is 1 mm, the most proper.


DebSpecs

It is probably the oldest online reading glasses store on the Internet. It offers the best optical quality reading glasses, computer glasses, prescription glasses frames, bifocals, sunglasses, foldable glasses, magnifying glasses, and eyewear accessories. A complete range of accessories is sold, including glasses cases, glasses holders, chains, magnifying glasses, lens cleaners, and cleaning cloths. Zero-power computer glasses are provided for the younger generation. These frames can be customized to your optician's prescription.



Pure titanium spectacle frame

Pure titanium is α-phase titanium containing a certain amount of oxygen, nitrogen, carbon, silicon, iron, and other element impurities. Titanium is an indispensable material for modern aerospace science, marine science, and nuclear power generation, and other cutting-edge science industries. Titanium is 48% lighter than ordinary metals, has strong toughness, acid and alkali resistance, corrosion resistance, high stability, high strength, good elasticity, and other advantages. It is in line with ergonomics. Titanium is non-toxic to the human body and does not have any radiation.

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