Wholesale Optical Bifocal Lenses Companies –  Bifocal Lens  – YOLI

Wholesale Optical Bifocal Lenses Companies – Bifocal Lens – YOLI

Wholesale Optical Bifocal Lenses Companies – Bifocal Lens – YOLI

Product Detail

Product Tags

Related Video

Feedback (2)

We retain bettering and perfecting our goods and service. At the same time, we perform actively to do research and enhancement for Progressive Lenses Brands , Lenses Photochromic , Uv420 Blue Block Lens , All prices depend upon the quantity of your order; the more you order, the more economical the price is. We also offer good OEM service to many famous brands.
Wholesale Optical Bifocal Lenses Companies – Bifocal Lens – YOLI Detail:

How to Tell If You Need Bifocals

Presbyopia is an age-related condition that results in blurry near vision. It often appears gradually; you will struggle to see a book or newspaper up close and will naturally move it further away from your face in order for it to appear clearly. 
At around the age of 40, the crystalline lens within the eye loses its flexibility. When young, this lens is soft and flexible, easily changing shape so it could focus light onto the retina. After age 40, the lens becomes more rigid, and cannot change shape as easily. This makes it harder to read or do other close-up tasks. 

Bifocal Lenses

Bifocal eyeglass lenses contain two lens powers to help you see objects at all distances after you lose the ability to naturally change the focus of your eyes due to age, also known as presbyopia. Due to this specific function, bifocal lenses are most commonly prescribed to people over the age of 40 to help compensate for the natural degradation of vision due to the aging process.

round top bifocal lenses

Three Designs of Bifocal Lenses

Regardless of the reason you need a prescription for near-vision correction, bifocals all work in the same way. A small portion in the lower part of the lens contains the power required to correct your near vision. The rest of the lens usually is for your distance vision. The lens segment devoted to near-vision correction can be of three shapes:

blue lens glasses

Shape 1

The Flat Top is regarded as one of the easiest multifocal lenses to adapt to, hence it is the most commonly used bifocal (FT 28mm is referred to as the standard size). This lens style is also one of the most readily available in almost any medium and including comfort lenses. The Flat Top utilizes the complete width of the segment giving the user a definitive reading and distance transition.

Shape 2

As the name suggests the round bifocal is round at the bottom. They were originally designed to help wearers reach the reading area more easily. However, this reduces the width of near vision available at the top of the segment. Because of this, round bifocals are less popular than the flat-top bifocals.The reading segment is most commonly available in 28mm.

ophthalmic lenses
lens optical lenses

Shape 3: Blended

The segment width of the Blended bifocal is 28mm. This lens design is cosmetically the best looking lens of all the bifocals, showing virtually no sign of a segment. However, there is a 1 to 2mm blending range between the segment power and the lens prescription. This blending range has a distorted perspective that can prove to be non-adaptable for some patients. However, it is also a lens used with patients that are non-adaptive to progressive lenses.


Product detail pictures:

Wholesale Optical Bifocal Lenses Companies –  Bifocal Lens  – YOLI detail pictures

Wholesale Optical Bifocal Lenses Companies –  Bifocal Lens  – YOLI detail pictures


Related Product Guide:

Bear "Customer initially, High quality first" in mind, we do the job closely with our customers and supply them with efficient and skilled providers for Wholesale Optical Bifocal Lenses Companies – Bifocal Lens – YOLI , The product will supply to all over the world, such as: Uzbekistan, Luxemburg, Australia, Our solutions have national accreditation requirements for qualified, good quality products, affordable value, was welcomed by individuals all over the world. Our products will continue to improve inside the order and appear forward to cooperation with you, Definitely should any of those goods be of curiosity to you, be sure to letus know. We'll be satisfied to supply you a quotation up on receipt of the detailed needs.
  • It's really lucky to find such a professional and responsible manufacturer, the product quality is good and delivery is timely, very nice.
    5 Stars By Joa from Buenos Aires - 2018.03.03 13:09
    The customer service staff is very patient and has a positive and progressive attitude to our interest, so that we can have a comprehensive understanding of the product and finally we reached an agreement, thanks!
    5 Stars By Arabela from Algeria - 2017.04.18 16:45
    Write your message here and send it to us
    >