SightGlass Vision DOT lenses: parents' guide
Key points
- SightGlass Vision DOT™ lenses provide clear vision and slow myopia worsening in children through Diffusion Optics Technology™ (DOT), slowing excessive eye growth and reducing the frequency of prescription changes in glasses.
- DOT lenses look and function much like regular glasses, making them suitable for many children. They require consistent, full-time wear to deliver best results in slowing the worsening of myopia.
- Clinical studies endorse the effectiveness and benefits of DOT lenses, making them a dependable option for protecting your child’s vision now and into the future.
In this article:
In this article, we’ll explain how SightGlass Vision DOT™ lenses work to slow myopia progression in children and teenagers. Read on to find out more, including when they could be a suitable treatment option for your child.
- What are SightGlass Vision DOT lenses?
- How do SightGlass Vision DOT lenses work?
- What are the features of the SightGlass Vision DOT lens?
- Should my child wear SightGlass Vision DOT glasses or contact lenses?
- Do SightGlass Vision DOT lenses really slow myopia?
- Is the vision in DOT lenses as good as regular glasses?
- When should my child wear their DOT lenses?
- What you can do next
What are SightGlass Vision DOT lenses?
Myopia, or short-sightedness, causes blurred distance vision. Childhood myopia develops when the eyes grow too quickly compared to the expected rate in childhood. Wearing SightGlass Vision DOT™ lenses helps to slow myopia progression by slowing the rate of this excessive eyeball growth.
SightGlass Vision DOT lenses are a new generation glasses (spectacle) lens designed to slow myopia progression in children 6-14 years of age. Developed in 2018, SightGlass Vision DOT lenses are an innovation based on contrast theory1 – a different principle compared to most other lenses used for myopia control (optical defocus theory).
Let’s look at how these lenses work.
How do SightGlass Vision DOT lenses work?
Standard spectacle lenses only work for vision correction – providing clear vision, but no protection against future worsening of myopia.
DOT™ lenses give kids clear vision and also use Diffusion Optics Technology™.
This technology is based on the contrast theory of myopia – that when the eye is overstimulated by high or artificial contrast images (e.g. from reading books or viewing electronic screens), and has less exposure to lower or more natural contrast images (such as outdoor, nature scenes), it may signal the eye to grow too quickly, leading to worsening myopia.1 The innovation behind DOT lenses is Diffusion Optics Technology (DOT), which filters artificial contrast to mimic more natural contrast.2
Each SightGlass Vision DOT lens has a large treatment zone, where thousands of microscopic dots are scattered across the lens. These dots are designed to softly diffuse light that passes through it, evening out the level of contrast seen by the eye, but don’t significantly interfere with the quality or clarity of vision.3
Think of it like adjusting a lamp so that it casts a softer glow rather than a harsh spotlight. By reducing artificially high levels of contrast, the signals that drive myopia to get worse are weakened.
There is also a central portion of the lens which is free of microdots, for lens power measurement. Children can see well throughout the treatment zone and throughout the lens. Thanks to this design, it is possible for the lens to give your child clear vision by correcting myopia, as well as slowing down the worsening of myopia.
To learn about the different glasses designs for myopia control, see our article All about eye glasses for myopia control.
What are the features of the SightGlass Vision DOT lens?
DOT™ lenses are suitable for children with a wide range of prescriptions, from mild myopia to high myopia, and including those who have astigmatism.
The lenses are made in impact-resistant Trivex material, have built-in UV protection, and an anti-scratch coating.4 Further customization is available, as the lenses can be ordered with an embedded photochromic layer (i.e, Transitions® Signature® Gen 8™) and/or anti-reflective coating.
Should my child wear SightGlass Vision DOT glasses or contact lenses?
If your child is nearsighted, they’ll require glasses (spectacles) or contact lenses to see clearly. Choosing between SightGlass Vision DOT™ glasses or specialized contact lenses (both of which can slow down myopia worsening in kids) typically depends on factors like your child’s lifestyle, hobbies, and your family preferences. Each approach has unique advantages, so some children even wear both on alternative days – not at the same time!
DOT lens glasses are simple, familiar, and convenient — put them on in the morning, wear them through daily activities, and take them off at bedtime.
Younger children might find it easier to wear glasses compared to contact lenses, which require careful handling and good hygiene habits to reduce the risk of eye infection. On the other hand, older or more responsible kids may prefer contact lenses for sports, outdoor activities, or for improved appearance.
The availability of treatments to slow progressive myopia in children also varies by country. Ultimately, picking the right option will come down to a discussion between you, your child, and their optometrist or eye doctor.
Other effective options for myopia management include myopia control soft contact lenses, ortho k lenses, or atropine eye drops. Learn more in our article Which is the best option for myopia control?
Do SightGlass Vision DOT lenses really slow myopia?
The effectiveness and safety of DOT™ lenses are supported by the results of the CYPRESS research study in North America, where children began wearing SightGlass Vision DOT lenses aged 6 to 10 years old and wore them for four years.5 In this study, SightGlass Vision DOT lenses were found to:
- Slow eye growth by at least half2
- Reduce the worsening of myopia by almost 0.40 (2 steps) compared to those wearing single-vision lenses over 1 year2
- Continue to slow eye growth and myopia progression over 4 years5
These results were achieved in children who wore their glasses on average over 13 hours a day, 7 days per week. Compared to wearing single vision glasses, both eye growth and worsening of myopia were slowed by about half.
This is the first spectacle lens to show that it is effective for children as young as 6 years old, with other lenses showing evidence from age 8. This is important as younger children typically have the most rapid changes in myopia6, and benefit the most from starting myopia control early.7
Find out more in our article When should we start myopia control and when should we stop?
Is the vision in DOT lenses as good as regular glasses?
SightGlass Vision DOT™ lenses are designed to slow your child’s myopia while also giving them clear vision, similar to the vision in standard single vision glasses.
DOT lenses are easy to wear, safe, and well-accepted by children.2 Because the dot elements are built into the lens itself, children don’t typically notice any visible differences. Studies show no difference in image clarity compared to regular, single vision glasses over 4 years, and children still have 20/20 vision with DOT lenses.5
It can sometimes take time to get used to new glasses. While some children will adapt straight away, others may take 1-2 weeks to feel ‘as usual’ in these special glasses. While getting used to the lenses, your child may notice the vision feels a bit ‘different’, due to the specialized treatment parts of the lens which give it the ability to slow down myopia.4
When should my child wear their DOT lenses?
Wearing time is very important when using SightGlass Vision DOT™ lenses to treat myopia.
SightGlass Vision recommends “children to wear their DOT spectacle lenses for all waking hours and for all activities except swimming or contact sports.”8 According to the study, children who wore DOT glasses at least 10 hours per day and didn’t remove their glasses for close-up vision activities (like reading or screen time) experienced the best benefits from the lenses.5
This rule is the same whether your child is wearing spectacles or contact lenses for myopia. Myopia treatments work best when worn full-time and every day.9 If the lenses are not being worn or being worn for a shorter period of time each day (e.g. just at school and not at home), then the level of effectiveness will likely be reduced.
What you can do next
Developed from years of clinical research, SightGlass Vision DOT™ lenses use Diffusion Optics Technology™ to give your child clear, stable vision while actively reducing myopia progression. Ask your optometrist or eye doctor whether DOT lenses are available in your country, determine your child’s suitability, and answer any questions you may have on kids, glasses and myopia.
Product disclaimer: DOT lenses are currently not available in the US but are available in selected countries outside the US.
References
- Hagen LA, Arnegard S, Kuchenbecker JA, Gilson SJ, Neitz M, Neitz J, et al. The association between L:M cone ratio, cone opsin genes and myopia susceptibility. Vision Res. 2019 Sep;162:20–8.
- Rappon J, Chung C, Young G, Hunt C, Neitz J, Neitz M, et al. Control of myopia using diffusion optics spectacle lenses: 12-month results of a randomised controlled, efficacy and safety study (CYPRESS). Br J Ophthalmol. 2023 Nov;107(11):1709–15.
- SGV data on file 2023.
- SightGlass Vision. DOT 0.2 Trivex Spectacle Lenses Document Number: LBL-C02-IFU-01 r9 [Internet]. 2021. (link)
- Laughton D, Hill JS, McParland M, Tasso V, Woods J, Zhu X, et al. Control of myopia using diffusion optics spectacle lenses: 4-year results of a multicentre randomised controlled, efficacy and safety study (CYPRESS). BMJ Open Ophthalmol. 2024 Oct 9;9(1).
- Jones LA, Mitchell GL, Mutti DO, Hayes JR, Moeschberger ML, Zadnik K. Comparison of ocular component growth curves among refractive error groups in children. Invest Ophthalmol Vis Sci. 2005 Jul;46(7):2317–27.
- Brennan NA, Toubouti YM, Cheng X, Bullimore MA. Efficacy in myopia control. Prog Retin Eye Res. 2021 Jul;83(100923):100923.
- SightGlass Vision. Diffusion Optics TechnologyTM [Internet]. 2025 [cited 2025 Mar 10]. (link)
- Gifford KL, Richdale K, Kang P, Aller TA, Lam CS, Liu YM, et al. IMI - clinical management guidelines report. Invest Ophthalmol Vis Sci. 2019 Feb 28;60(3):M184–203.