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An eye care professional taking measurements of a young patient with the ZEISS MYO 200 biometer.
ZEISS FOR EYE CARE PROFESSIONALS

ZEISS MYO 200

Fast, precise and effective for patients of all ages.

Position yourself as a leader in combating myopia progression with confidence and precision: Harness the power of the ZEISS MYO 200 biometer to effectively measure key drivers of myopia progression in your patients' eyes. Elevating our trusted ZEISS IOLMaster technology with seamless workflow connectivity and more intuitive operation, the streamlined and user-friendly ZEISS MYO 200 helps you deliver reliable, rapid care for all patients, whatever their age.

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A product image of ZEISS MYO 200.

Engineered for precision and speed.

Accurate, consistent and repeatable measurements are critical to effective myopia management. They’re essential for early detection, personalised monitoring and evidence-based clinical decision-making.

The ZEISS MYO 200 biometer is engineered to help you identify the causes of myopia and track its progression in your patients. It quickly determines the two key drivers of myopia: the axial length (AR) and corneal radius (CR).

Get results in seconds with the high precision and accuracy ZEISS is known for. This enhanced speed makes the MYO 200 a convenient measurement tool for patients of all ages – including children.

Learn more about AL and CR measurements

Measurements used in myopia management.

Primary parameter: axial length.

Axial length is the key structural driver of myopia progression. It is the most clinically relevant parameter used to track the progression of myopia, assess the risk of future high myopia and associated ocular pathology, and monitor the effectiveness of myopia control interventions.

Progressive axial elongation reflects true eye growth. It’s directly linked to long-term ocular health risks, whether or not there are refractive error changes. 

Computer-generated image showing a myopic eye with light focus in front of the retina and axial elongation of the eye.
Computer-generated image showing a non-myopic eye with light focusing directly on the retina.
Computer-generated close-up image of an eye with different intensity in corneal curvature.

Role of corneal curvature in myopia management.

Corneal curvature impacts the eye’s refractive status but plays a limited role in myopia progression. After early childhood, corneal curvature remains relatively stable. It isn’t a primary driver of progressive myopia, which makes it less suitable for monitoring treatment response over time.

Its greatest clinical value lies in baseline assessment. Here, corneal curvature helps characterise the refractive components of myopia, distinguish corneal-related refractive changes from those driven by axial elongation, and support the planning and fitting of optical interventions, such as contact lenses.

  • Fast.

    Measure axial length and corneal radius up to 23% faster than with the ZEISS IOLMaster 500.1

  • Precise.

    Ensure accurate monitoring with medical-level repeatability of 0.02 mm (≈ 0.05 D).2

  • Proven.

    Leverage the proven ZEISS IOLMaster 500 technology from over 100 million scans performed worldwide.

A close up image of a young boy during MYO 200 measurements.

Track tiny changes in eye size.

Count on trusted, gold-standard measurements for myopia management with the ZEISS MYO 200. Built on the legacy of the ZEISS IOLMaster 500, this state-of-the-art biometer leverages proven technology from over 100 million scans worldwide.

It matches the IOLMaster's precision with medical-level repeatability of 0.02 mm, accurately monitoring even minor changes in eye growth (0.02 mm ≈ 0.05 D)2 – helping you make clinical decisions with confidence.

ZEISS-patented telecentric PCI technology provides consistent, repeatable measurements across multiple sessions without requiring perfect head positioning.

Learn more about validated biometry for patients of all ages

Validated pediatric biometry in ZEISS MYO 200.

An illustration of the Partial Coherence Interferometry (PCI) in ZEISS MYO 200 biometer.

Proven PCI ensures reliable results.

ZEISS MYO 200 inherits the trusted, gold-standard technology of the IOLMaster 500. Using Partial Coherence Interferometry (PCI), it measures distances in transparent ocular media such as axial length – with exceptional precision, reliability and repeatability.

PCI directs a focused light beam into the eye, where it reflects off of internal structures. The system measures the delay between reflections to accurately determine axial length, providing the precise, reproducible data needed for effective myopia management.

Telecentric keratometry: the benchmark in optical biometry.

The patented telecentric keratometry from Carl Zeiss Meditec AG is uniquely incorporated in the MYO 200 biometer, allowing for highly accurate keratometry measurements.  

It maintains a constant image size regardless of small patient movements – for precise, repeatable and reliable corneal measurements, even in challenging pediatric cases.

A specialised lens system ensures that light entering the device remains parallel, making measurements distance-independent and highly repeatable.

Receive reliable results – in seconds.

Make your workflow more efficient with the MYO 200. It focuses specifically on the key parameters essential for myopia monitoring: axial length (AL) and corneal radius (CR). Faster scans reduce fixation time, streamlining the measurement process for patients of all ages.

On average, the MYO 200 completes AL and CR measurements for a single eye in just 7.5 seconds – 23% faster than the IOLMaster 500.1 This speed supports a smoother, more efficient clinical workflow without compromising precision.
An eye care professional taking measurements with ZEISS MYO 200.
In pediatric myopia management, every second matters. Shorter scan times improve patient cooperation and comfort, making measurements easier and more reliable – even with young patients.
A young patient greeting an eye care professional.

Operations made easy.

Designed for high-precision myopia management, the intuitive interface on the ZEISS MYO 200 reduces the learning curve and minimises the risk of user error, allowing clinicians to focus on patient care.
  • An eye care professional operating MYO 200 by ZEISS manually with the joystick.

    Streamlined control.

    You only need one hand to operate the responsive touchscreen and joystick, allowing precise control and a more efficient workflow.

  • An image of the ZEISS MYO 200 interface offering an automatic or manual operation option.

    Two measurement modes.

    Choose between automatic mode for quick, reliable measurements and manual mode for more complex cases, such as cataracts or irregular corneas.

  • An image of the traffic light feature in the ZEISS MYO 200 interface.

    In-system smart assistance.

    A traffic light system and arrow guidance assist with alignment and measurement. Get consistent, accurate results while improving patient comfort.

What our partners say about MYO 200.

MYO 200 helps retail stores offer a full spectrum of consultation services, from initial assessments to long-term monitoring.

Mr. Ken Wong, Head of Optometry (Part 1 Optometrist), Puyi Optical, Hong Kong, 2025.

On average, MYO 200 can complete the AL & CR measurements within 7.5 seconds, 23% faster than IOLMaster 500.1

Dr. Zhi Chen, Ophthalmologist, Shanghai Eye & Ent Hospital Fudan University, 2026.

Enhanced patient comfort and cooperation: MYO 200 measurements demonstrate better comfort and cooperation than IOLMaster 700.

Prof. Dennis TSE, Director, Clinical Trial Unit for Vision; Associate Professor, School of Optometry, The Hong Kong Polytechnic University, Hong Kong, 2025.

An image of an eye care professional holding a tablet with ZEISS MyoConsult next to her customers and ZEISS MYO 200.

Easily connectable for seamless integration.

Introducing the ZEISS MYO 200 to your practice brings interoperability and intuitive connectivity, supporting a streamlined, end-to-end myopia management workflow.

Incorporate the ZEISS MYO 200 into your existing practice setup to streamline operations and enhance efficiency. Automatically sharing measurement data with non-ZEISS systems eliminates the need for manual entry while reducing the risk of errors.

Fully compatible with the ZEISS ecosystem, the biometer connects effortlessly to ZEISS VISUCONSULT 500 and other in-practice devices. Secure, reliable data transfer powers a continuous workflow.3

Your go-to for myopia management.

Add ZEISS MyoConsult to your clinical workflow.

Track progression, evaluate treatments and deliver personalised insights for every myopia patient.

Discover ZEISS MyoConsult

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Further information

Product | ZEISS Medical Device
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MYO 200 *

CZMSZ

CZV

VISUREF 600 *

CZV

CZV

VISUCORE 500 Refractor *

CZV

VISUCORE 500 Table

CXE

CZV

VISUSCREEN 100 Compact

CZV

VISUCORE 500 Refractor*

CZV

VISUCORE 500 Table

CXE

CZV

VISUSCREEN 100 Compact

CZV
VISUFIT 1000 Platform
CZV
VISUFIT 1000 *
CZV
VISUCONSULT 500

CZV
VISUPLAN 500 *
CZM

CZV
VISUSCOUT 100 **
OO
CZV

i.Profiler plus *
CZV
VISUREF 150 *
CZM
CZV
VISUPHOR 500
CZM
CZV
VISUSCREEN 100/500
CZV
i.Terminal 2 Station
CZV
i.Terminal 2 *
CZV
i.Terminal mobile *
CZV
ZEISS Slit Lamps
CZM
CZV

Slit Lamp Imagine Solution

CZM

CZV
VISULENS 550
CZM
CZV
ATLAS Review for i.Profiler plus *
CZV
Product | ZEISS non-Medical Device

MyoConsult

CZV

CZV
Virtual Try-on
CZV
Avatar Generation
CZV
VISUSTORE
CZV
i.Terminal go
CZV

International edition: only for sale in selected countries.
Please contact your local sales manager for more information.

 
VISUCORE, VISULENS, VISUCONSULT, VISUPLAN, VISUSCOUT, i.Profiler, VISUREF, VISUPHOR, VISUSCREEN, VISUFIT, i.Terminal and VISUSTORE are either trademarks or registered trademarks of Carl Zeiss AG or any other companies of the ZEISS Group in Germany and other countries.

 
iPad is a trademark and/or registered trademark of Apple Inc. iOS is a trademark and/or registered trademark of Cisco in the U.S. and other countries and is used under license. Windows®, and the Windows logo are registered trademarks of Microsoft Corporation in the United States and/or other countries.

CZV
Carl Zeiss Vision GmbH
Turnstrasse 27
73430 Aalen
Germany
www.zeiss.com/vision

CZM
Carl Zeiss Meditec AG
Goeschwitzer Strasse 51-52
07745 Jena
Germany
www.zeiss.com/meditec

OO
Optomed Oyj
Yrttipellontie 1
FI-90230 Oulu
Finland

CXE
CX ENGINEERING sp.zo.o.
ul. Przemyslowa 17
32-083 Balice
Poland

LTO
Luneau Technology Operations
27340 Pont-de-l'Arche
2 Rue Roger Bonnet
France

  • 1

    On average, ZEISS MYO 200 can complete the AL & CR measurements within 7.5 seconds, 23% faster than IOLMaster 500. – Clinical study comparing the accuracy, repeatability, and measurement speed of ZEISS MYO 200 with similar ophthalmic optical biometers. Involving 102 participants aged 8–40 years (average 15.8 years). Unpublished results. Dr. Zhi Chen, Ophthalmologist, PhD, Associate Professor, Shanghai Eye & Ent Hospital, Fudan University; Shanghai, China, 2025.
  • 2

    ZEISS MYO 200 matches the IOLMaster 500’s medical-level repeatability of better than 0.02 mm – precision you can trust for myopia management. Clinical study comparing the accuracy, repeatability, and measurement speed of ZEISS MYO 200 with similar ophthalmic optical biometers. Involving 102 participants aged 8–40 years (average 15.8 years). Unpublished results. Dr. Zhi Chen, Ophthalmologist, PhD, Associate Professor, Shanghai Eye & Ent Hospital, Fudan University; Shanghai, China, 2025.
  • 3

    ZEISS MYO 200 connectivity to ZEISS VISUCONSULT 500 will be supported by Carl Zeiss Vision GmbH.