What does digitally surfaced lenses mean?

2020-06-03 by No Comments

What does digitally surfaced lenses mean?

In contrast, digitally surfaced lenses are high-definition lenses that are created with state-of-the-art equipment, using a diamond-point lathe cutter controlled by computer software. The prescription is carved into the back of the lens blank.

WHY IS lens surfacing important?

Digital surfacing allows a unique lens to be produced for each individual. This means being able to avoid any compromise in seeking a single progressive design capable of satisfying the largest number of wearers without, however, being ideal for any one of them.

Do I need digitally surfaced lenses?

Digitally surfaced lenses are customized for your visual needs and are especially beneficial for progressive (No-Line Trifocal) lens wearers. Similar to the difference between standard and High Definition television, digitally surfaced lenses help provide more crisp and sharp vision.

What are the 3 types of lenses for glasses?

Types of Optical Lenses

  • Single vision lenses. Single vision lenses have the same prescription power across the entire lens.
  • Bifocal lenses. Bifocals are made up of two lenses to correct both near and far-sighted vision.
  • Trifocal Lenses.
  • Progressive lenses.
  • Toric Lenses.
  • Prism Lenses.

Does AR coating block blue light?

Specialty AR coatings like TechShield™ Blue, combat digital eye strain by reducing your exposure to blue light from digital devices and lighting. If you’re unfamiliar with digital eye strain, it’s that tired, irritated feeling you get in your eyes after looking at a digital screen for a few hours.

What is Oakley digital surfacing technology?

Using freeform technology, Oakley clear lenses are digitally optimised point by point on the back surface to provide high definition vision, greater clarity and a wider field of vision.

What is the difference between progressive lenses and digital progressive lenses?

Traditional progressive lenses are produced using “pre-molded” templates and the same design is used for every wearer. Digital progressives are customized for each wearer’s prescription. This customization eliminates more distortion and will help you transition to and from far and near vision much more easily.

What type of progressive lens is best?

And transitioning between these viewing areas is often painless for your eyes. One disadvantage of this progressive lens is that you’ll need to have large frames. Otherwise, you can limit your near vision, so if you prefer small, less noticeable frames, premium progressive lenses are the better choice.

What are the disadvantages of polycarbonate lenses?

There are also some disadvantages of polycarbonate lenses:

  • You get what you pay for. Polycarbonate lenses can cost up to double the price of regular eyeglasses.
  • Less durable than Trivex lenses.
  • Lower Abbe value than regular plastic or high-index lenses.

Which lens is better for eyes?

Polycarbonate and nearly all high-index plastic lenses have 100 percent UV protection built-in, but others need an added coating for UV protection….Spectacles.

CR 39 1.498 Excellent optics, low cost Thick lenses
Crown glass 1.523 Excellent optics, low cost Thick lenses, breakable

What makes a digitally surfaced lens far superior?

To understand what makes a digitally surfaced lens far superior, let’s take a closer look at the difference between traditionally surfaced lenses and digitally surfaced lenses. Traditionally surfaced lenses are created with a hands-on approach that is very laborious and time-consuming.

How are surfaced lenses made without a prescription?

Surfaced lenses are made by taking a blank piece of plastic (without any prescription in it) and grinding the prescription into the plastic. These lenses are custom made from a mold that can be manufactured with a custom base curve, prescription and blank size.

When to upgrade to a digitally surfaced lens?

While you may have chosen a traditionally surfaced lens in the past for your glasses, lately you might have noticed a lack of clarity or uncomfortableness with them. If so, it might be time to upgrade to a digitally surfaced lens.

Can a progressive lens be used in a surfacing lab?

In other words, traditional surfacing labs have pre-made tools stocked for every prescription imaginable. For a progressive prescription, a traditional lab must use a semi-finished progressive lens that has the progressive bifocal on one side, then it works the prescription into the side opposite the progressive.