Digital Lenses Specialist

Your Two Eyes Optometry

Optometry located in Berkeley, CA

Even if your eyeglass prescription is correct on paper, you may not feel fully satisfied with the clarity of your vision. That’s because conventional lenses have limits. Your Two Eyes Optometry, in Berkeley, California, is proud to offer digital lenses, which use technology to provide the most precise vision correction available. To learn more about digital lenses, call the office or schedule an appointment online today.

Digital Lenses Q & A

What are the limitations of traditional lenses?

In short, traditional lenses can only correct so much. If you have a refractive error, such as nearsightedness (myopia), farsightedness (hyperopia), or astigmatism, chances are you’ve been prescribed corrective lenses. Your eyeglass or contact lens prescription is supposed to give you 20/20 vision.

It’s possible that you do have 20/20 vision while wearing glasses or contact lenses but still don’t feel totally satisfied with your sight. You may have higher-order aberrations (HOAs), which are more subtle and complex refractive errors than nearsightedness, farsightedness, or astigmatism. The technology behind traditional lenses isn’t precise enough to correct higher-order aberrations.

If you’ve worn traditional lenses, you may have noticed that your vision is clearest when you look directly through the center of the lens. Your vision becomes less clear when you look to the side. This is especially true if you have a strong prescription or wear progressive lenses.

What are digital lenses?

Digital lenses, also known as “high definition lenses,” are made using digital technology. They’re similar in many ways to traditional eyeglass lenses, including their material and appearance. The key difference is the computer-based process used to create them.

Digital lenses offer a level of precision that isn’t attainable through traditional lens making techniques. That’s because digital lenses are designed using a computer and can correct for higher-order aberrations that affect your vision, not just your predominant vision problem.

You may consider the change from traditional lenses similar to watching a high definition television versus an old tube set. In addition to more precisely matching your eyes, digital lenses are designed to provide clearer vision in all lighting conditions and to reduce glare at night. What they can achieve is far closer to natural, uncorrected 20/20 vision than traditional lenses.

What are free-form lenses?

Free-form lenses are the most popular type of digital lenses. This groundbreaking approach to manufacturing lenses uses computer-assisted technology to create some of the most precise lenses available. Examples of this precision include:

  • Surfacing lenses in increments of 0.01 diopter, a unit of refractive power, compared with 0.125 to 0.25 increments in traditional lens making
  • Accounting for the position of the lenses in front of your eyes
  • Accounting for the angle between your eye and the back surface of the lens, including when you’re looking to the side rather than straight ahead

To learn more about how digital lenses can help you see your best, call Your Two Eyes Optometry or schedule an appointment online today.