Myopia management

with a sharper

future



Understanding Myopia


What is Myopia?

Myopia is a common eye condition where objects in the close distance are clear and objects in the far distance are blurred. It typically begins during childhood and can often progress until the eyes stops growing.


What is the cause of Myopia?

The development of myopia is influenced by hereditary and environmental factors

and appears to be increasing at an alarming rate.



Nature

Children are 7.9x more likely to develop myopia if both parents are myopic.(2)



Nurture

Amount of near work and lack of outdoor time is associated with myopia development.(3)




What are the symptoms of Myopia?

Blurred distance vision

Difficulties concentrating at school

Going closer to the television

Headaches and eye strain

Tired eyes and squinting

Why Is Myopia management important?

Certain degrees of myopia increases the risk of developing complicated eye conditions.

Early detection and implementing proper myopia management strategies can reduce severity and decrease the risk of serious eye conditions in the future.




Introducing


Hexagon Implicated

Defocus Segment (HIDS) technology


Myopia management involves reducing the rate of eye elongation. Our MyoStock lens features a clear viewing zone. Surrounding the clear viewing zone are hundreds of evenly distributed hexagonal segments with HIDS technology, which aims to slow down eye elongation.


The MyoStock design integrates advanced HIDS technology, aiming to both reduce the progression of myopia and offer clear and comfortable vision.


How does MyoStock work?

To understand the underlying concept of MyoStock, it is important to know how light interacts with the myopic eye.


Single Vision Glasses

If single vision glasses are prescribed, central vision is clear. However, light rays in the periphery are focused behind the back of the eye which acts as a trigger for the eyes to grow.





Peripheral light rays are focused behind the back of the eye, acting as a stimulus for myopia progression.

Eyes grow longer and become more myopic.

MyoStock eliminates this trigger as the HIDS technology moves the light rays in the periphery forward, thereby creating a signal to slow down eye growth. By slowing down eye growth, we can decrease the rate of myopia progression.







Reduced myopia progression.

Features & Benefits



Thinner lens

High index lenses are lighter and are more visually appealing compared to a standard lens.

Aspheric design

The interior aspherical design provides clear vision through the centre segment without distortion.

Blue filter

Blocks blue light wavelengths and relives eye fatigue.

USH coating

Resistant to fingerprint, oils, scratches and super hydrophobic.

Central viewing zone

Superior aesthetics

Based on the peripheral defocus theory

HIDS technology

MyoStock’s In-house Experiment



AIM

To investigate the effect of MyoStock on myopia progression and axial elongation.

Method

Participants were prescribed either MyoStock or single vision distance glasses to be worn full time.

Result

Rate of myopia progression

decreased by 45%


Rate of axial elongation decreased by 53%


Children wearing MyoStock showed an improvement in:

  • High contrast VA
  • Stereoacuity
  • amplitude of accomodation


FAQ

General

What is MyoStock?

MyoStock is a groundbreaking ophthalmic lens made for myopia management. It featured the unique ‘hexagonal implication defocus segment’ (HIDS) technology to correct nearsightedness, whilst slowing down myopia progression.

MyoStock offers a cost-effective solution to the growing incidence of myopia.


What is HIDS technology?

The idea behind HIDS technology is to use simultaneous defocus when viewing objects in the distance and at near.

The lens is made up of a central viewing zone which allows one plane to be focused on the retina, providing clear and sharp vision.

Encircling the central viewing zone features micro-hexagonal segments which promotes peripheral myopic defocus, preventing the eye from stretching and reducing the risk of myopia progression.



Technical specifications

What is the defocus power of each hexagon?

The defocus power ranges, depending on where the hexagons are situated.

Surrounding the clear central zone, the defocus power is +3.50DS and towards the periphery, the defocus is +4.50DS.


What is the size of the central and treatment zone?

Central zone is <12.4mm in diameter. Treatment zone is 42mm in diameter


What material is MyoStock available in?

MyoStock is available in 1.6 high index, aspheric lens.

This material was chosen as it works best with HIDS technology. It does not come in any other materials.


What coatings are available in?

MyoStock lenses automatically come with the USH coating. USH stands for ‘ultra super hydrophobic’. It is resistant to fingerprint, oils, scratches and is super hydrophobic.


These coatings can not be removed and there are no alternative coatings or tints can be applied to the lens.


FAQ

Experimental Data

Have the effects of MyoStock been proven?

An in-house study was conducted to investigate the effect of MyoStock on myopia progression and axial elongation. It involved 150 Chinese children aged 8-15yo with a prescription ranging from -1.00 to -6.00DS with -1.50 astigmatism.


Participants were prescribed either MyoStock or single vision distance to wear full time for 18m and had their axial length and refractive error checked every 6m.


The results showed the rate of myopia was decreased by 45% and rate of elongation was decreased by 53%.


The experiment will not be published.


What is the efficacy of MyoStock?

To measure efficacy of a myopia lens, axial length and refractive changes are measured.

  • MyoStock reduced the rate of axial elongation by 53%.
  • MyoStock reduces myopia progression rate is decreased by 45%.


Does MyoStock show a rebound effect?

Currently, there is no data which investigates the rebound effect of MyoStock.



Prescribing

At what age should we prescribe MyoStock?

According to the experimental data, MyoStock should be prescribed for children between the ages of 8 to 15yo.


Can we prescribe MyoStock to children younger or older?

MyoStock can be prescribed for children who are younger than 8yo and older than 15yo. However, the experimental data does not include children or adults that fall out of this range.

It would be best to prescribe a myopia lens that’s shown great efficacy amongst children or adults in their relevant age range.

MyoStock is unique as the amount of defocus increases further into the periphery, helping to slow the progression of myopia.


How often should i be reviewing my patients using MyoStock?

The time to review patients is up to the optometrists’ discretion as it is dependent on a number of factors including the level of risk the child has with their myopic progression, compliance and whether they’re on other myopia treatment.

In general, for a non-complicated myope, a review every 3-6m is recommended.


How long does it take to adapt to MyoStock?

It takes about 1-2 weeks to adapt to the glasses. We suggest the glasses be worn full time.


What is the recommended age for MyoStock?

MyoStock is suitable for patients between 8-15yo. It can be prescribed at any stage of the patient’s myopia journey, especially the first presentation of myopia and if there are signs of progression.


Can MyoStock be used along side other myopia management treatments?

MyoStock can be used in conjunction with other myopia management treatments. However, there are limited clinical studies which investigate the efficacy of combining treatments.

This decision is up to the optometrist’s digression.



FAQ

Dispensing and ordering

Are there any recommendations as to which frame to choose?

  • Avoid frames that are too big and too small
  • Choose a sturdy frame that fits well on the nose bridge
  • Avoid frames that have a tendency to slip down
  • The frames should sit centrally both vertically and horizontally
  • The frame needs to have a height of 30-38mm
  • The minimum pupil height is 14mm
  • The recommended upper fitting height is between 10-12mm


What is the fitting height from the top and bottom of the lens?

The recommended upper fitting height from the top of the frame is 10-12mm.

The minimum pupil fitting height from the bottom of the frame is 14mm.


What information do we need to provide when ordering MyoStock?

To order MyoStock, you need monocular pupillary distance and height.

MyoStock's design is optimised for the following position of wear parameters.

  • Vertex distance: 10-12mm
  • Pantoscopic tilt: 0-5degrees.


How do you order MyoStock?

To order MyoStock, practices need to have a CR trading account.

MyoStock can be placed via MyLab console or your ordering platform

(Optomate or SUNIX).


If MyoStock is not set up on your ordering platform, please contact your business development manager.



Technical specifications

What are the power ranges?

Sphere plano and -0.50DS to -6.00DS, Cyl: -2.00


What is the warranty?

  • 3m warranty that covers 1 remake for PD OR height alterations from date of original purchase.
  • 6m rx warranty that includes a complimentary set of lenses, in cases where the prescription has increased -0.50DS or greater from date of original purchase
  • All MyoStock lenses are covered by a 12-month manufacturer’s warranty, including potential USH coating manufacturing defects. The USH coating warranty excludes scratching, chipping or breakdown due to wear and tear.
    • Please note USH coating provides scratch resistance and acts as an additional layer of protection against environmental conditions and general wear. USH will not provide scratch proofing properties.



Contact details

Dispensing and ordering

Who do i contact if i want to start prescribing MyoStock?

Please contact your business development manager who will also help:

  • Set up your CR trade account
  • Set up MyoStock on your ordering platform
  • Go through how to order MyoStock via the console


Who do i contact for marketing resources?

For marketing resources such as extra brochures, ECP booklets, social media posts and posters, please contact our marketing team:

marketing@crlabs.au


Who do i contact for more information on MyoStock?

For more information, education and training resources on MyoStock, please contact our professional services department:

myostock@crlabs.au




References

  1. Nilagiri, V.K., Lee, S.S.Y., Lingham, G., Charng, J., Yazar, S., Hewitt, A.W., Griffiths, L.R., Sanfilippo, P.G., Tsai, T.H. and Mackey, D.A., 2023. Distribution of Axial Length in Australians of Different Age Groups, Ethnicities, and Refractive Errors. Translational vision science & technology, 12(8), pp.14-14.
  2. Mutti, D.O., Hayes, J.R., Mitchell, G.L., Jones, L.A., Moeschberger, M.L., Cotter, S.A., Kleinstein, R.N., Manny, R.E., Twelker, J.D. and Zadnik, K., 2007. Refractive error, axial length, and relative peripheral refractive error before and after the onset of myopia. Investigative ophthalmology & visual science, 48(6), pp.2510-2519.
  3. Bullimore, M.A. and Brennan, N.A., 2019. Myopia control: why each diopter matters. Optometry and Vision Science, 96(6), pp.463-465.
  4. Ip, J.M., Huynh, S.C., Robaei, D., Rose, K.A., Morgan, I.G., Smith, W., Kifley, A. and Mitchell, P., 2007. Ethnic differences in the impact of parental myopia: findings from a population-based study of 12-year-old Australian children. Investigative ophthalmology & visual science, 48(6), pp.2520-2528.
  5. Morgan, I.G., Wu, P.C., Ostrin, L.A., Tideman, J.W.L., Yam, J.C., Lan, W., Baraas, R.C., He, X., Sankaridurg, P., Saw, S.M. and French, A.N., 2021. IMI risk factors for myopia. Investigative ophthalmology & visual science, 62(5), pp.3-3.
  6. Karthikeyan, S.K., Ashwini, D.L., Priyanka, M., Nayak, A. and Biswas, S., 2022. Physical activity, time spent outdoors, and near work in relation to myopia prevalence, incidence, and progression: An overview of systematic reviews and meta-analyses. Indian journal of ophthalmology, 70(3), p.72
  7. Holden, B.A., Fricke, T.R., Wilson, D.A., Jong, M., Naidoo, K.S., Sankaridurg, P., Wong, T.Y., Naduvilath, T.J. and Resnikoff, S., 2016. Global prevalence of myopia and high myopia and temporal trends from 2000 through 2050. Ophthalmology, 123(5), pp.1036-1042.
  8. Wolffsohn, J.S., Whayeb, Y., Logan, N.S. and Weng, R., 2023. IMI—Global Trends in Myopia Management Attitudes and Strategies in Clinical Practice—2022 Update. Investigative Ophthalmology & Visual Science, 64(6), pp.6-6.
  9. Faria-Ribeiro, M., Queirós, A., Lopes-Ferreira, D., Jorge, J. and González-Méijome, J.M., 2013. Peripheral refraction and retinal contour in stable and progressive myopia. Optometry and Vision Science, 90(1), pp.9-15.
  10. Mutti, D.O., Sholtz, R.I., Friedman, N.E. and Zadnik, K., 2000. Peripheral refraction and ocular shape in children. Investigative ophthalmology & visual science, 41(5), pp.1022-1030.
  11. Lin, Z., Martinez, A., Chen, X., Li, L., Sankaridurg, P., Holden, B.A. and Ge, J., 2010. Peripheral defocus with single-vision spectacle lenses in myopic children. Optometry and Vision Science, 87(1), pp.4-9.
  12. Erdinest, N., London, N., Lavy, I., Berkow, D., Landau, D., Levinger, N. and Morad, Y., 2023. Peripheral defocus as it relates to myopia progression: A mini-review. Taiwan Journal of Ophthalmology.
  13. Bao, J., Wang, Y., Zhuo, Z., Yang, X., Tan, R., Drobe, B. and Chen, H., 2016. Influence of progressive addition lenses on reading posture in myopic children. British Journal of Ophthalmology, 100(8), pp.1114-1117.
  14. Gajjar, S. and Ostrin, L.A., 2022. A systematic review of near work and myopia: measurement, relationships, mechanisms and clinical corollaries. Acta Ophthalmologica, 100(4), pp.376-387.
  15. Pan, C.W., Ramamurthy, D. and Saw, S.M., 2012. Worldwide prevalence and risk factors for myopia. Ophthalmic and Physiological Optics, 32(1), pp.3-16.
  16. Ip, J.M., Rose, K.A., Morgan, I.G., Burlutsky, G. and Mitchell, P., 2008. Myopia and the urban environment: findings in a sample of 12-year-old Australian school children. Investigative ophthalmology & visual science, 49(9), pp.3858-3863.
  17. Jones-Jordan, L.A., Sinnott, L.T., Chu, R.H., Cotter, S.A., Kleinstein, R.N., Manny, R.E., Mutti, D.O., Twelker, J.D., Zadnik, K. and CLEERE Study Group, 2021. Myopia progression as a function of sex, age, and ethnicity. Investigative Ophthalmology & Visual Science, 62(10), pp.36-36.


CR Labs


3/66-74 Micro Circuit,

Dandenong South,

Victoria 3175

Australia