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Myopia, Children and Digital Centration Devices (DCDs)

Myopia - prevalence in children

Myopia (or nearsightedness) is a common vision problem that often begins between the ages of 6 and 14. It affects up to 5% of preschoolers, about 9% of school-aged children, and nearly 30% of adolescents.

How myopia develops

With myopia, the eye is longer than normal from front to back, or the cornea (the clear window at the front of the eye) is too steeply curved. This makes things that are far away from you look blurry.

Childhood-onset myopia is most commonly caused by the eyes growing too quickly, or continuing to grow after age 10-12 when eye growth should normally cease. Genetics, environment, and the individual’s characteristics can all contribute to this excess growth

What causes myopia

Spending more time on close work has been linked to the development of myopia, such as reading, playing computer games, drawing, or using smartphones and tablets.
Electronic hand-held devices are easy for toddlers to use resulting in increased exposure to close work at a younger age.

Myopia can be hereditary, and a person’s ethnicity and family background can increase the risk.
A person with one short-sighted parent has three times the risk of developing myopia – or six times the risk if both parents are short-sighted.

Symptoms of myopia include

  • Complaints of blurry vision (like not being able to see the board in school)
  • Squinting to try to see better.
  • Frequent eye rubbing.
  • Frequent headaches.

How do the COVID-19 pandemic lockdowns worsen myopia in children

The COVID-19 pandemic has led to many schools becoming virtual. That means kids have been spending more time on screens and close-up work. Social distancing measures and staying home also equals less time that many children spend outside. These factors have doctors concerned about the potential for a big increase in myopia in children. To help lower the risk of myopia, especially during the pandemic, encourage your child to take frequent breaks from close-up work, spend daily time outside when possible, and limit recreational screen time.

What is myopia control or myopia management

Myopia cannot be reversed or cured, but it can be treated. The goals of treatment are to improve your child’s vision and prevent it from getting worse. This is important for protecting their eye health in the future, even if they still need glasses or contact lenses.
Wearing a lens made to the child’s prescription will ensure light is focused onto the back of their eye (retina) correctly so distant objects don’t appear as blurry. Taking into account that the thickness and weight of the lenses will depend on how short-sighted the kid is.
The children’s eyesight often changes as they get older, which means they may eventually need to use 2 pairs of glasses: 1 pair for close vision activities such as reading, and the other pair for distance vision activities, such as watching television.
Some parents prefer their kids to use bifocal lenses that allow them to see objects clearly that are both closeup and far away without changing their glasses. Some others, choose to get multifocal lenses that help to see nearby objects and those at middle and long distances (varifocal glasses).

How a Digital Centration Device (DCD) can help

Since pediatric dispensing requires a different approach and more specialist skills. Any errors in dispensing will have a more profound effect (like accelerating the progression of myopia) and children are not always able to communicate if something is uncomfortable or impacting their vision.
A child’s face is not just a scaled-down version of an adult’s face. There are various of anatomical differences which should be considered in the choice of frame.

The main differences are:

  • Reduced crest height
  • Larger frontal angle
  • Widened splay angle (the angle of the pad bridge)
  • Smaller bridge projection
  • Smaller head and temple width
  • Less pantoscopic tilt

A DCD can provide the ECP (dispensing optician or optometrist) with the most accurate and precise measurements in order to give the best possible fit, cosmetic appearance, and visual outcome. It will definitely provide a positive experience for the child.
A piece of equipment such as the visuReal Master can make the dispensing measurement process easy, fast, and efficient. Since there is only a small window of opportunity to try on frames before the child loses concentration.
Remember that, as with adults, one pair of spectacles often does not meet the child’s lifestyle requirements: sports, hobbies, light protection, safety, and use of digital devices–all should be considered and the appropriate frames and lenses recommended.

 

For more information or to address specific inquiries regarding our visuReal digital centration systems, please feel free to contact us.

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Photo source: Hoya Lens, artwork for MiYOSMART spectacl lens for chilren

Free-form Lenses & Digital Centration Devices (DCD)

Freeform since over 20 years

It is a bit more than 20 years since free-form generated progressive lenses were introduced into the marketplace. In their infancy, these lenses were looked upon as complex and expensive products, which many in both the industry and profession said would never catch on.

Well, it is evident that this production process has been adopted by all of the major manufacturers and is definitely here to stay. Not only has the freeform process been utilized for progressive lenses, but there is increasing use of the technology on every other type of spectacle lens, including an example of free-form bifocals.

What does the free-form Lens Technology mean to your patients and your business?

Free-form is a manufacturing technology that has been developed since the late 1980s where special Computer Numeric Controlled (CNC) machines are used to produce high precision lenses. Traditional lenses are surfaced on just one side and the best vision is in the center of the lens, while free-form lenses are surfaced on both sides customizing the lens to the patient’s prescription in a very precise manner. In fact, free-form technology can surface lenses in power increments of 0.01 diopter (D), compared with 0.125 to 0.25 D increments of conventional eyeglass lens tooling.

We can say that this technology can be considered as a gift to those opticians specializing in designing their patient’s eyewear.

How does a Digital Centration Device like visuReal fit in here?

As we already explained, free-form technology allows us to design customized lenses for every patient. Naturally, we need to take different and more precise frame measurements to allow the software designer to place optimum optics in the right places.

Which measurements are important?

In addition to the basic frame measurements besides monocular PD’s and segment heights, the following measurements are a must to truly customize the eyeglasses:

  • Position of Wear (PoW)
  • Vertex Distance
  • Pantoscopic Tilt
  • Panoramic Angle

For more info regarding measurements provided by the visuReal® equipment, please visit our blog entry
Necessary measurements for dispensing and fitting new glasses

What are the benefits of Freeform lenses?

  • Wider field of vision due to back surface design.
  • Maximized visual acuity at all distances.
  • Wider intermediate and near zones.
  • Minimal visual “swim and sway.”
  • Low levels of unwanted astigmatism.
  • Aspheric/atoric designs make the lenses thinner and flatter.
  • Reduction of Higher Order Aberrations.

When we are talking about free-form lenses, we are mainly thinking about PALs. However, single vision free-form lenses really create the Wow-effect. They offer clear, natural, and distortion-free vision all the way to the periphery of the lens.
Wherever you are with free-form technology right now, embrace it. It is the way of the future.

For more information or to address specific inquiries regarding our visuReal digital centration systems, please feel free to contact us.

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photo source: Knecht und Müller

Short Summer Break

Our modified support hours

Summer time is holiday time! So, we are also going on holiday.

From 9.8. to 13.8.2021 visuSolution GmbH will be closed!

Our telephone support will be there for you in reduced summer staffing during this time!

Our summer support
from 09.08. to 13.08.2021
Mondays – Fridays from 9 a.m. to 4 p.m.

 

 

Our services during this time

During this you can:

– call us and send us an e-mail
– place orders
– get license activations
– get help via remote control

The production, shipping / returns and accounting departments are not staffed during the company holidays.

After 13 August, we will be back in full operation and at our usual business hours!

Relax and enjoy the summer!

Best regards

Your visuSolution Team

 

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5 Years of Vision

5% Anniversary Discount in July

Celebrating 5 years of visuSolution  – delighted to have YOU with us!

For 5 years, you have been working with us to provide better vision.

On this occasion, we are giving an anniversary discount of 5 percent on all orders in the month of July 2021!

Thank you for your loyalty and the good cooperation. Be on board for the next 5 years as well! That would make us happy.

 

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Necessary measurements for dispensing and fitting new glasses

Digital dispensing enables individual viewing experiences

Knowing the patient’s prescription isn’t the end of the story. Firstly, it is impossible to measure without the chosen frame on the patient’s face. Fulfilling the prescription is very much a symbiosis of frame and lenses. It is worthwhile mentioning that not all frames are suitable for all prescriptions, so it is really important that the customer is guided in his/her frame choice by a dispensing optician.

Then, what exactly does the visuReal® digital centration system measure, and how can it help an Eye Care Professional (ECP) for producing customized spectacles? Here are the answers:

 

Every face is unique

Interpupillary Distance (PD)  Traditionally this has been the distance between the center of your pupils when looking straight ahead. Today opticians understand that this just isn’t enough for the production of modern spectacles. Each lens must be individually position using your chosen spectacle frame. This measurement takes into account that not all noses (or faces) are equal. In fact, most are not! This measurement takes into account that the frame may be sitting slightly more to the left (or right) of the center.

Eye Point - the height is essential

Fitting  Height (eyepoint)  It is important that the lenses are centered vertically so they are exactly the correct height in the frame, this is dependent on the design of the lens. Our faces are very asymmetrical and so having the frame in the correct position on the face is vital for this measurement. This applies to modern Single Vision lenses as well as the Progressive ones.

 

Head and frame inclination needs to be considered together

Wearing Pantoscopic Angle (WPA) This is the angle resulting from the deviation of the 90° line in front of the wearer’s face and the tilted frame line watching into far distance while wearing the frame. Some glasses have flat frames, but most will tilt slightly, so the top portion of your glasses is slightly further from your face than the bottom. In fact, for progressive lenses, a slight tilt can assist your vision by contributing to the right kind of magnification effect. Otherwise, if you look through incorrectly angled spectacles, aberrations and distortions are introduced.

Curved or flat?

Face Form Angle Which is the measurement of the frame curvature or how much the frame curves to the shape of the face. Depending on how high or low the base curve is, it will indicate how curved or flat the frame and lenses will be. visuReal even measures the FFFA (frame face form angle) – i.e. the wearing FFA .

 

The "gap" is what matters between eye and lens back surface

Back Vertex Distance (BVD) This is the gap between the front of your eye and the back surface of the lens. The distance the lens is away from the eye alters the effective power of the lenses thus it is important to compensate for this in the final lens power. Naturally, opticians need the frame on the face to measure this and we also need to know the original prescribing BVD that the optometrist used. If you are a little older and wear progressive or multifocal lenses we also need to know where the optometrist placed the reading addition when you were being tested, before, or behind, the distance lens. visuReal is even more specific in this case. It measures the so called FCD (Frame Cornea Distance), which means the distance between the frame centre and the cornea, since you cannot know exactly the lens’ back surface value in advance.

The imaginary box

The Boxing Size of the Lens The boxing system is based upon the idea of drawing an imaginary box around a lens shape with the box’s sides tangent to the outermost edges of the shape. The system uses the sides of the boxes as reference points for the standard system of measurements which includes: A-size, B-Size or frame centerline and distance between lenses (DbL).

 

Precise, individual data acquisition - they key to better compatibility

Precise data provided by the device are being considered from the very beginning of the production and affect the optical design throughout the whole production process, thus providing the best available visual experience for the wearer. Products based on individual parameters guarantee personalized results in all cases.
The visuReal digital video centration system helps to prevent non-adaptation problems in the case of progressive lenses. Furthermore, it eases the fitting process of customized optical lenses, thus creating a comfortable environment for your customer when acquiring a new pair of glasses.
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Benefits of Digital Dispensing

Dispensing process becoming more precise, personal and more enjoyable

Buying a pair of eyeglasses can be a complex, puzzling, and even frustrating experience for many consumers. The process is often fraught with uncertainty, with consumers asking dispensers questions such as “Do these glasses look good on me?” “Can you get them to fit me more comfortably?” “Will these new lenses really help me see better?” and “Am I getting my money’s worth?”

Fortunately, a new generation of eyewear dispensing technology is helping eyecare professionals allay their customers’ concerns by making the dispensing process more precise, personal, and ultimately, more enjoyable.

Digital dispensing gives a totally individual viewing experience

The new technologies—like those offered by our company—range from cutting-edge dispensing systems that take digital photographs and measurements to simple hand tools. What they have in common is the ability to precisely capture patient measurements, including how the frame fits the patient and the position in which it is worn.
Combining this biometric data with the patient’s prescription and a digital lens design enables the optical laboratory to produce one-of-a-kind lenses that optimizes the performance of the lens and gives the wearer a totally personalized viewing experience.Another plus of using the visuReal system in your optical dispensary is that it impresses customers, especially when they see other patients being measured. It is common that patients who see an ECP using the equipment say “Why don’t you use that machine on me?”

Wow experience for the customer

Along with the “wow” reaction these lenses typically elicit from wearers, patients are often favorably impressed with the high tech look and feel of the dispensing system itself and well as with useful features such as taking digital photos of consumers trying on their new eyewear and then emailing them the photos or demonstrating premium lens options.
Interviews with several ECPs reveal that using new technologies, like the visuReal Master, are boosting sales of premium lenses, reducing reworks, and creating a unique patient experience that can’t be duplicated by an online, virtual dispensary.
Below are some of the benefits that come implicitly in a visuReal digital centration system:

Precision and accuracy are enhanced. Any of the visuReal equipment can deliver a precision of a tenth of a millimeter, which is more precise by a factor of five than a common digital-readout pupillometer.
Improved repeatability. In many busy offices, there are multiple employees of varying skill levels. The measurements taken from a digital centration system reduce the variations between operators as well as between successive measurements by a single operator.
Easy obtention of “position-of-wear” measurements. The advent of wrap-around eyewear, as well as position of wear enhanced single vision and progressive lenses, require that ECPs obtain good values not only for PD (pupil distance) and pupil height but also for vertex distance, pantoscopic tilt, and panoramic (aka face-form) angle. The visuReal digital centration systems can easily obtain these values via digital pictures.
Advanced interfacing with practice management systems. If the ECP employs an advanced PMS, linking it to the visuReal equipment will allow to efficiently transfer the patient’s eyeglasses measurements data at the push of a button. Making both the dispensary and lab better partners in the visual performance delivered to the patient.

ECPs often view the price of equipment upgrades as hard costs that drop to their bottom line rather than helping to keep their business at the top of its game. Particularly with the latest technology, both hardware and software evolve at breakneck speed, and there can be a tendency to wait for that next big upgrade. So, it is no longer an option to sit back and just look forward to the day your lease payment ends. Today, more than ever, keeping the latest tech in your practice is the only way to ensure you are ready, willing, and able to compete in the most intense and cutthroat optical market.

It’s time to decide. It’s time to go digital and visuSolution is here to help you.

For more information or to address specific inquiries regarding our visuReal digital centration systems, please feel free to contact us.

„From now we have first customers using the VisuReal Master and they absolutely love it! They confirm it is faster, images are perfect and it’s simple. From my side I really appreciate that you still improve it. Boxing system is perfect and I am looking forward when we will know statistics of using.“
Lucie
New Media Trainer, Hoya Lens CZ
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Digital Eyewear Dispensing Becoming Basic

Essentially, a digital video centration system performs the basic measurements, such as pupillary distance, segment height for progressive lenses, vertex distance, panoramic angle, and pantoscopic tilt. A digital photo function is also included for capturing how the consumer looks wearing the spectacles.

While the refraction position is the matching of the prescription with the consumers’ visual needs, the visuReal system provides a set of measurements that allow the laboratory to make alterations to the lens design to match the consumer’s prescription needs for maximizing visual quality.

The main benefits of a visuReal system are that precision and accuracy are enhanced, as it takes more precise readings as compared to the traditional method, minimizing human error.

Practitioners who think they can rely on existing skill sets will see themselves losing competitive advantage over the years when consumers stop coming back as they are not keeping up with the current technology.

What’s new?

visuReal Master software versions

visuReal Master version 1.4

Release:

News:

2020 – 01 – 21

  • Boxing System for Measurement Cursor Positioning
  • Tutorial
  • Turn-OFF Function
  • Ready Status Display
  • General Improvement and Operational Reliability

visuReal Master version 1.3.14

Release:

News:

2020 – 05 – 05

  • Graphical illustration of the measurement results
  • Calculation of the head rotation correction
  • Automatic updates via Auto Updater feature
  • Frame edge optimisation and therefor improvement of measurement result accuracy
  • Automatic WLAN-channel optimisation of the internal 2.4GHz-Master hotspots
  • General improvement of operational reliability

visuReal Master version 1.1.21

Release:

News:

2019 – 11 – 26

  • New measurement method for BVD and FFA
  • Magnifying glass view for an easier positioning of the measurement cursors
  • New „inSession“ feature for the data transfer to HoyaiLog

visuReal Master version 1.0.13

Release:

News:

2019 – 10 – 19

  • Performance improvement
  • Stabilization of functionality
  • Several translation amendments
  • Improved display of software buttons on the site „measurements of the last 48 hours

visuReal Master version 1.0.6

Release:

News:

2019 – 08 – 15

  • Improved automatic detection of the boxing parameters
  • Improved manual readjustment through automatic calibration
  • Improved iris and pupil cursor display
  • General improvement of operational reliability

visuReal Master B2B interface

Soon working with any PMS application

Because connectivity is crucial in a digitalized workplace.
The #visuReal Master B2B interface app will be a powerful software advancement and a function that is designed to efficiently transfer your customer’s eyeglasses measurements data with any Practice Management Software (PMS) application or database using industry standards.
It will easily and quickly automate data flows and connect your visuReal Master device to external applications while maintaining a simple interaction to view information, correct errors, and resubmit data if needed.
Coming soon, stay tuned!