Myopic children who wear spectacle lenses need a solution that will slow myopia progression, as well as protecting them from harmful UV rays and intense sunlight.


Outdoor Time & Sun Protection

The importance of daylight for myopia management in children

91% of Eye Care Professionals recommend spending at least 2 hours outdoors per day1

Spending time outdoors may slow down myopia progression in children2,3 and is the most commonly recommended behavioural myopia management solution given by Eye Care Professionals.4 It may be the simplest and cheapest intervention that parents can encourage right away.

Children’s eyes should be protected from intense sunlight when outdoors

Children are more susceptible to eye damage from UV light than adults, as the majority of lifetime sun exposure occurs under the age of 21, so it is especially important to offer them effective and reliable sun protection.5-7 This is because children’s pupils are larger and the lenses of their eyes are more transparent, which allows more UV rays to reach the retina.6 Furthermore, single vision sunglasses may not be the most effective myopia management solution for myopic children.8,9


Myopic children on atropine treatment are more likely to experience photophobia, due to atropine dilating the pupil.10-12 Intense sunlight may prevent them from going outdoors, playing sports and joining activities that are good for their well-being.

Protect how they see the world with MiYOSMART Sun

With MiYOSMART Sun lenses, slowing of myopia progression and protection from intense sunlight come together.5,13-16


MiYOSMART Sun lenses adopt DIMS Technology for effective myopia management and correction of myopic refractive error, while protecting from intense sunlight and increasing eye comfort.5,13-16

Just like MiYOSMART clear lenses, MiYOSMART Sun lenses offer 100% protection from UVA and UVB,17* reducing the risk of long-term damage to the eye.


*As per EN ISO 8980-3:2013 and ANSI Z80.3-2015 Standards.

MiYOSMART Chameleon Photochromic

An all-in-one solution for any time and any place

Discover our photochromic spectacle lenses that slows myopia progression

Children may find it inconvenient to change their eyewear every time they step outdoors. MiYOSMART Chameleon Photochromic lenses do it automatically for them. They rapidly adapt to the levels of sunlight, providing children with as much protection as they need at any time and place.18*

Early Experience Program insights directly from children

We asked children with myopia about how they felt about MiYOSMART Chameleon in our Early Experience Program (EEP)

  • We found that 80% of children adapted to their new spectacle lenses within one day, regardless of age or ethnicity. 20
  • All children were satisfied with their visual performance during various activities, with as much as 98% reporting overall satisfaction at the 3-month mark! 20
  • Children showed great compliance to their treatment, averaging 12 hours of wear on weekdays, which means that the spectacle lenses had a higher chance of treating their myopia.20
  • Additionally, wearing MiYOSMART Chameleon for 2 weeks significantly reduced light sensitivity in children who used atropine eyedrops, as a part of combination treatment.20
Read more

Why Recommend MiYOSMART Chameleon?

Features of MiYOSMART Chameleon:

  • Molded laminate photochromic film technology
  • Fade back to clear indoors in seconds18*
  • Clear lenses indoors (Category 0)*
  • Swift darkening to category 2 tinting*
  • Stylish grey colour

Molded laminate photochromic film technology to preserve optical performance of D.I.M.S. Technology

Benefits of photochromic lenses:

  • Decreased symptoms of photophobia15
  • Reduced glare 14-16
  • Improved vision in intense sunlight and photostress recovery time14*

*MiYOSMART Chameleon spectacle lenses transit from clear to 90% of the dark state in less than 30 seconds and reach 60% transmission after 60 seconds from the activated. Tests were conducted at room temperature (23°C)

MiYOSMART Sunbird Polarized

Manage myopia and allow children to see outdoor colours as vibrant as their imagination

Discover our polarized spectacle lenses that slows myopia progression

MiYOSMART Sunbird is the ideal addition to MiYOSMART clear spectacle lenses, for extra protection from intense sunlight and glare,5,17† which is especially useful for photophobic children using atropine drops for myopia management. Moreover, the contrast and colours seen through MiYOSMART Sunbird remains rich and vibrant, allowing children to fully experience the beauty of outdoors19.

†MiYOSMART polarized spectacle lenses and inactive MiYOSMART photochromic spectacle lenses block 100% of harmful UV light, as per the ISO8980-3 (2022) standard. Reliable UV measurements are not possible during photochromic lens activation. Activation does not alter UV-blocking characteristics compared to clear spectacle lenses.

Why Recommend MiYOSMART Sunbird?

Features of MiYOSMART Sunbird:

  • Category 3 tinting
  • Stylish grey colour

Benefits of polarized spectacle lenses:

  • Greater comfort from glare and intense sunlight5*
  • Decreased symptoms of photophobia5
  • Improved contrast sensitivity19*
  • Rich and vibrant colour perception


MiYOSMART has not been approved for myopia management in all countries, including the U.S., and is not currently available for sale in all countries, including the U.S.



  1. 1. HOYA data on file. Harris Interactive: HOYA Vision Care concept testing, MiYOSMART sun. 07/2022
  2. 2. Ho CL, Wu WF, Liou YM. Dose-Response Relationship of Outdoor Exposure and Myopia Indicators: A Systematic Review and Meta-Analysis of Various Research Methods. Int J Environ Res Public Health. 2019;16(14):2595.
  3. 3. Jonas JB, Ang M, Cho P, et al. IMI prevention of myopia and its progression. Invest Ophthalmol Vis Sci. 2021;62(5):6.
  4. 4. Myopia Survey Data. November 2022. Presented as part of WSPOS Symposium: Comprehensive Update on Myopia Management.19-20 November 2022. Available from: (Last accessed: 20/02/2023)
  5. 5. Sunlight Exposure & Children’s Eyes Consensus Statement. 2016. Available at: (Last accessed 20/02/2023)
  6. 6. Prevent Blindness. Children’s Eyes are More Susceptible to Long-Term Damage from UV Rays. 2011. Available at: (Last accessed 20/02/2023)
  7. 7. Artigas JM, Felipe A, Navea A, Fandiño A, Artigas C. Spectral transmission of the human crystalline lens in adult and elderly persons: color and total transmission of visible light. Invest Ophthalmol Vis Sci. 2012;53(7):4076-4084.
  8. 8. Jonas JB, Ang M, Cho P, et al. IMI prevention of myopia and its progression. Invest Ophthalmol Vis Sci. 2021;62(5):6.
  9. 9. Correction of Myopia Evaluation Trial 2 Study Group for the Pediatric Eye Disease Investigator Group. Progressive addition lenses versus single-vision lenses for slowing progression of myopia in children with high accommodative lag and near esophoria. Invest Ophthalmol Vis Sci. 2011;52:2749–57.
  10. 10. Li FF, Yam JC. Low-Concentration Atropine Eye Drops for Myopia Progression. Asia Pac J Ophthalmol (Phila). 2019;8(5):360-365.
  11. 11. Gong Q, Janowski M, Luo M, et al. Efficacy and Adverse Effects of Atropine in Childhood Myopia: A Meta-analysis. JAMA Ophthalmol. 2017;135(6):624-630.
  12. 12.Wu PC, Chuang MN, Choi J, et al. Update in myopia and treatment strategy of atropine use in myopia control.  Eye (Lond). 2019;33 (1):3-13.
  13. 13. Lam CSY, Tang WC, Tse DY, et al. Defocus Incorporated Multiple Segments (DIMS) spectacle lenses slow myopia progression: a 2-year randomised clinical trial. Br J Ophthalmol. 2020;104(3):363-368.
  14. 14. Lakkis C, Weidemann K. Evaluation of the performance of photochromic spectacle lenses in children and adolescents aged 10 to 15 years. Clin Exp Optom. 2006;89(4):246-252.
  15. 15. Renzi-Hammond LM, Hammond BR Jr. The effects of photochromic lenses on visual performance. Clin Exp Optom. 2016;99(6):568-574.
  16. 16. Wu PC, Kuo HK. Effect of photochromic spectacles on visual symptoms and contrast sensitivity of myopic schoolchildren treated with low dose concentration atropine. Invest Ophthalmol Vis Sci. 2016;57:2484.
  17. 17. HOYA data on file. Transmission, traffic light recognition, and UV blocking test for MiYOSMART clear and MiYOSMART sun spectacle lenses. 02/2023. Tests were conducted at room temperature (23°C).
  18. 18. HOYA data on file. Lens performance validation test for MiYOSMART photochromic lenses – activation and deactivation. 02/2023
  19. 19. Quintana MS, Langa A, del Moral-Martinez I, et al. Polarized Filters Enhance Contrast Sensitivity When Glare Is Produced On A Flat Surface Under Photopic Conditions. Invest Ophthalmol Vis Sci. 2006;47(13):1225.