20/20's Resource for Education and Learning

IOT Free-Form Insights

IOT Free-Form Insights Part 30

A conversation with Dr. Peter Shaw, Innovator Behind the Game-changing Shaw Lens

There is no end to the complexities associated with correcting vision. Laurie Pierce recently spoke with Dr. Peter Shaw, who invented the Shaw lens, to address several of those complexities. Aniseikonia is an ocular disorder characterized by dissimilar ocular images received in the brain, and anisophoria is due to the difference in prismatic effect associated with unequal refractive powers in eyeglasses. Pierce shares what she learned from her interview with Dr. Shaw.

IOT Free-Form Insights Part 29

Helping Labs Deliver Excellent Free-Form Lenses

IOT CEO and president Daniel Crespo describes the key IOT characteristics that help laboratories deliver excellent free-form lenses to every patient, every time. If you have never met him or heard him speak, you’re missing something special. The passion and commitment to excellence he brings to his life’s work are evident, as are the academic roots that helped him grow his lens software company. We asked Daniel what it takes to make exceptional lenses. While a written interview cannot capture all that is Daniel Crespo, it certainly explains why his company continues to flourish.

IOT Free-Form Insights Part 28

What Your Lab Wishes You Knew

Your laboratory is your most crucial vendor relationship. From my perspective, I observe how a lab can be an eyecare professional’s best ally. Because no matter how beautiful a frame is, if you can’t trust your laboratory to make a good pair of lenses, you won’t have a happy customer.

IOT Free-Form Insights Part 26

What Your Lab Wishes You Knew

In the last article, we covered lens materials and coating options, and their effect on lens optical performance. We briefly covered blue light attenuating lenses and coatings with a promise to share more in this June article. To that end, this article will cover the limits and benefits of the two types of blue light lenses in the market (indoor and outdoor). More and more consumers search blue light on the internet as they experience increased concern about the effects of digital screen time on eyes. They come to you for guidance and present you with the opportunity to help them understand the different types of blue attenuating lenses and coatings and their function.

IOT Free-Form Insights Part 25

What Your Lab Wishes You Knew

It’s important that opticians know the best material for the job especially for groove and drill mount frames or high lens powers. We have a lot of material choices, and we must determine which combination of lens properties will produce the best lens performance for each job. For example, what are the most impact resistant and strongest lens materials? Strongest, in terms of tensile strength, means the ability of a lens to withstand a pulling force. Lenses with high tensile strength are good for drill mounts.

IOT Free-Form Insights Part 24

What Your Lab Wishes You Knew

This article is the third in a series of articles from Tina Lahti, VP of sales and marketing for IOT, and a longtime optician and industry educator. Tina shares informative tidbits from her course “What Your Lab Wishes You Knew.”

This article reviews the effects of lens decentration on lens thickness. To examine the contribution of decentration relative to lens edge thickness, we started with a control job. How much does decentration matter? A lot.

IOT Free-Form Insights Part 23

Camber™ With IOT Intelligence

IOT Intelligence is the technology and innovation that powers the Camber lens excellence, from the unique variable curve front surface of the Camber blank to the strict lab enablement process. Let’s review the many technologies that result in the unique Camber lens. Camber Variable Base Curve: The Camber variable base curve blank improves the front surface profile that delivers each viewing zone a base curve matched to its function. The width of undistorted near vision is a major improvement over single vision front freeform progressive designs.

IOT Free-Form Insights Part 22

The Camber Lens with New Steady Plus Methodology

“The proof of the pudding is in the tasting” is an adage meaning that to determine success, put it to the test. While a lens design is impressive in theory, it must be put to the test with actual wearers with real-life use to be validated. Wearers judge lens performance based on personal comfort, not just acuity. Today’s screen-focused consumer has new vision needs and higher demands for comfort in their new work from home (WFH) environment. While other digital and web-based technologies rapidly adapt to our new reality, increasing our WFH comfort and productivity, so has lens technology.

IOT Free-Form Insights Part 21

What Your Lab Wishes You Knew

Frame information plays an important role in cut out. I know we’ve all heard this phrase, but do we really know what it means? Cut out is exactly what it sounds like. Imagine you’ve rolled out some cookie dough, and you must determine how many cookies you can cut from that flat sheet of dough. Well, it depends on the size and shape of the cookie cutter. Using a smaller shape cookie cutter will result in more cookies.

IOT Free-Form Insights Part 20

What Your Lab Wishes You Knew

Let’s start with a simple truth: Laboratories make better lenses if you can tell them everything you know about the patient’s frame and how it fits on their face. When I say everything, I mean everything. We understand the importance of providing box measurements to the lab, but these frame dimensions don’t tell the lab the shape of the frame eye wire. Let’s say that the frame is an aviator shape, but you don’t let the lab know this, so what could go wrong? The shape of the frame/lens affects both optics and cosmetics. We know the fitting height for progressive lenses should be measured from center pupil to the deepest part of the frame, but do we know why?