Wholesale Bifocal Lenses Factory –  Bifocal Lens  – YOLI

Wholesale Bifocal Lenses Factory – Bifocal Lens – YOLI

Wholesale Bifocal Lenses Factory – Bifocal Lens – YOLI

Product Detail

Product Tags

Related Video

Feedback (2)

We're going to commit ourselves to giving our esteemed buyers using the most enthusiastically considerate solutions for Sunglasses Lenses , Hmc Emi Optical Lens Price , Optical Lens Manufacturers In China , Accurate process devices, Advanced Injection Molding Equipment, Equipment assembly line, labs and software development are our distinguishing feature.
Wholesale Bifocal Lenses Factory – 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 Bifocal Lenses Factory –  Bifocal Lens  – YOLI detail pictures

Wholesale Bifocal Lenses Factory –  Bifocal Lens  – YOLI detail pictures


Related Product Guide:

The purchaser fulfillment is our primary focus on. We uphold a consistent level of professionalism, high quality, credibility and service for Wholesale Bifocal Lenses Factory – Bifocal Lens – YOLI , The product will supply to all over the world, such as: Latvia, Namibia, Montreal, Actually need to any of those objects be of interest to you, make sure you allow us to know. We'll be delighted to present you a quotation on receipt of one's comprehensive specs. We've our individual specialist R&D enginners to meet any of the requriements, We look forward to receiving your enquires soon and hope to have the chance to work together with you inside the future. Welcome to take a look at our organization.
  • The goods we received and the sample sales staff display to us have the same quality, it is really a creditable manufacturer.
    5 Stars By Elma from Hungary - 2018.06.18 19:26
    Problems can be quickly and effectively resolved, it is worth to be trust and working together.
    5 Stars By Doris from Muscat - 2018.06.28 19:27
    Write your message here and send it to us
    >