Multi-Curve Design
Gently aligns with the peripheral cornea to achieve better lens centration for a stable, precise, and comfortable fit throughout overnight wear.
Euclid Ortho K Lenses
Shape the Future of Vision
Join Euclid, a Global Leader in Advanced Orthokeratology for Myopia Management.
For 20+ years, Euclid has refined the art and science of myopia management. Around the world, we’ve focused on today’s most challenging regions, like Asia, where myopia rates first reached epidemic levels. Euclid’s designs are one of today’s most innovative Ortho-K designs in the world.
As myopia’s impact climbs across the globe, we’re partnering with an increasing number of select eye care professionals, so more patients can benefit from the sophisticated, yet simple and modern design of Euclid lenses.
Contact Us NowDiscover the Advantages of Euclid’s Proprietary Lens Design
Precision-engineered for easier fitting, predictable outcomes, and exceptional patient comfort.
Euclid’s advanced orthokeratology lens designs are developed to simplify the fitting process while delivering excellent daytime vision, comfortable overnight wear, and effective myopia management for a wide range of patients.
Optimised Treatment Zone
An advanced algorithm customises the treatment zone according to each patient’s prescription and corneal shape, providing more predictable visual outcomes.
Elevation Adjustments for Astigmatism
Limbus-to-limbus corneal elevation differences are incorporated into Euclid’s proven toric lens design, helping achieve improved lens stability and fitting success for astigmatic patients.
Proven Myopia Management
Euclid Ortho-K gently reshapes the cornea during sleep, allowing patients to enjoy clear daytime vision without glasses or contact lenses while helping to slow the progression of myopia in children and adolescents.
Proven Orthokeratology for Myopia Management
The world’s most researched Ortho-K lens for Myopia1
Euclid has been at the forefront of orthokeratology innovation for decades, combining proven lens designs with extensive clinical research to support effective myopia management. Built on the trusted Emerald™ design, Euclid Ortho-K lenses deliver predictable treatment outcomes, fitting simplicity, and comfortable overnight wear, giving eye care professionals confidence in every fit.
Backed by 2X More Myopia Research
Backed by more than twice the myopia research of any other Ortho-K lens manufacturer.
Clinically Proven Axial Length Control
Clinically shown to help slow axial elongation in children with myopia.
Up to 70% Less Myopia Progression Over 3 Years
In a three-year real-world study, 70% of children showed minimal axial elongation by year three.
89% Improved Overall Patient Experience
89% of eye care professionals reported a better or significantly better fitting experience compared to other Ortho-K lenses.
Lens Material
High oxygen permeability for safe, comfortable overnight wear.
Euclid Ortho-K lenses are manufactured using FDA-approved, high oxygen-permeable materials to support corneal health during overnight wear. Practitioners can choose between two premium lens materials based on each patient’s clinical needs and lifestyle.
Emerald™ 85 DK
The Gold Standard
- Proven performance for everyday orthokeratology
- Excellent balance of comfort and durability
- Trusted by practitioners worldwide
- Ideal for a wide range of patients
MAX™ 180 DK
Maximum Breathability
- Ultra-high oxygen permeability for enhanced overnight wear
- Maximises oxygen transmission to the cornea
- Greater resistance to chipping, breakage and warpage
- Suitable for patients requiring higher oxygen transmissibility
Help Patients Live Life to the MAX
Next-generation orthokeratology for myopia management.
Euclid MAX™ and Euclid MAX™ Toric combine Euclid’s proven lens designs with advanced Tisilfocon A (DK 180) material, delivering exceptional oxygen permeability, comfort, and durability for successful overnight orthokeratology.
87% First-Fit Success*
Achieve efficient fittings with a high first-fit success rate, reducing chair time while improving practitioner and patient satisfaction.
*Based on internal data
Excellent Wettability
Promotes comfortable overnight wear while helping to resist lens deposits for consistent performance.
Hyper DK 180
Features the highest oxygen permeability among U.S. overnight Ortho-K brands, supporting corneal health during overnight wear.
Enhanced Durability
Engineered to resist warpage, scratches, and chipping for long-lasting lens performance.
Simple, Efficient Empirical Fitting
Get started without a trial lens set.
Euclid’s streamlined fitting process uses three key patient measurements to determine the initial lens design, helping practitioners fit with greater efficiency and confidence without requiring a trial lens set.
Advanced Fitting, Greater Control
A more personalised approach to Ortho-K lens design.
Euclid Advanced Fitting gives practitioners greater control over lens parameters by combining high-quality corneal topography with the flexibility of Euclid’s advanced lens design parameters.
How It Works
Capture a Quality Baseline Topography
Obtain a high-quality baseline corneal topography using the Medmont Meridia Classic or Professional.
Design with Medmont Studio 7
Use Medmont Studio 7 to assess the corneal profile and manually design the lens based on the patient’s individual corneal shape.
Fine-Tune with Euclid Advanced Parameters
Leverage Euclid’s advanced parameters to customise the lens design and achieve a more precise fit based on the patient’s clinical requirements.
Frequently Asked Questions
Euclid Ortho-K lenses are specially designed, highly oxygen-permeable contact lenses worn overnight. While you sleep, they gently reshape the cornea’s front surface. This temporary correction allows you to see clearly throughout the day without needing glasses or daytime contact lenses.
Euclid is a globally trusted leader in orthokeratology with over 20 years of FDA-approved reliability and the most clinical research proving its effectiveness in slowing myopic progression in children. Max material provides ultra-high oxygen breathability to keep the cornea exceptionally safe and healthy during overnight wear. Additionally, fully customized lens parameters ensure an optimal, comfortable fit for almost any unique corneal shape, delivering precise and predictable vision correction.
Euclid is backed by an extensive body of clinical research—having been studied significantly more than many other manufacturers—proving its exceptional efficacy in slowing down myopic progression and axial elongation in children and teenagers. By reshaping the cornea, Euclid lenses alter peripheral light focus on the retina, which effectively curbs the worsening of near-sightedness over time.
Yes, Euclid lenses are fully FDA-approved for safe overnight wear. They are manufactured from advanced Tisilfocon A (180 Dk hyper-oxygen-permeable) fluorosilicone acrylate materials that allow an optimal flow of oxygen to pass through to the cornea during sleep. However, safety depends heavily on strict adherence to prescribed wearing schedules, proper hygiene, and professional supervision.
It is recommended to replace your Euclid lenses every 12-18 months, or earlier if the lens develops any surface defects, scratches, or protein deposits that cannot be cleaned. Regular replacement ensures optimal visual performance, structural integrity, and ocular health.
Euclid lenses are suitable for many children, teenagers, and adults with mild-to-moderate myopia and astigmatism. A comprehensive eye examination and corneal topography mapping by a local optometrist are required to determine if your eye shape and prescription fall within the safe treatment range.
If you notice a chip, crack, or scratch on your Euclid lens, stop wearing it immediately. Damaged lenses can compromise the comfort and health of the cornea. Consult your local optometrist promptly to evaluate the lens and arrange for a replacement.
Many wearers notice an improvement in their daytime vision after just one or two nights of overnight wear. However, achieving full correction and stable visual acuity can take anywhere from a few days to a couple of weeks, depending on the initial prescription.
Yes, specialised Euclid designs can correct various levels of astigmatism. Your optometrist will map your corneal curvature using advanced diagnostic equipment to custom-fit a lens that accommodates both your myopia and astigmatism.
Euclid lenses are available worldwide across numerous countries. In Singapore, VITOP Pte Ltd is the exclusive distributor supplying USA-made Euclid lenses to the local market. We work closely with highly and professionally trained optometrists across Singapore to bring you best-in-class fittings. Please contact VITOP customer service at +65 9850 7688 / enquiry@vitop.com.sg to find the best Euclid-verified fitter near you.
Shaping better vision together
Discover Euclid’s proven Ortho-K solutions and simplified fitting approach.